SN761678B

TV TUNER IC
www.ti.com SLES185 – JUNE 2006

FEATURES
DBT PACKAGE
• Single-Chip Mixer/Oscillator and (TOP VIEW)
Phase-Locked Loop (PLL) Synthesizer
• Three-Band Local Oscillator VHI OSC C 1 30 UHF RF IN
• I2C Bus Protocol (Bidirectional Data VHI OSC B 2 29 VHF RF IN
Transmission) OSC GND 3 28 BS4
VLO OSC C 4 27 RF GND
• 30-V Tuning Voltage Output
VLO OSC B 5 26 MIX OUT2
• Four NPN-Type Band-Switch Drivers UHF OSC B1 6 25 MIX OUT1
• Programmable Reference Divider Ratio UHF OSC C1 7 24 IF IN2
(512, 640, or 1024) UHF OSC C2 8 23 IF IN1
• External 4-Pin Intermediate Frequency (IF) UHF OSC B2 9 22 BS2
Filter Between Mixer Output and IF Amplifier IF GND 10 21 BS1
Input VCC 11 20 BS3
• 5-V Power Supply IF OUT 12 19 ADC
• 30-Pin Thin Shrink Small-Outline Package CP 13 18 AS
(TSSOP) VTU 14 17 SDA
XTAL 15 16 SCL
APPLICATIONS
•
P0038-01
TVs
• VCR/DVD Recorders
• Set-Top Boxes

DESCRIPTION
The SN761678B is a synthesized tuner IC designed for TV tuning systems. The circuit consists of a
phase-locked loop (PLL) synthesizer, three-band local oscillator and mixer, 30-V output tuning amplifier, and four
NPN band-switch drivers. The device is available in a small-outline package. A 15-bit programmable counter and
reference divider are controlled by I2C bus protocol. Tuning step frequency is selectable by this reference divider
ratio for a crystal oscillator.
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This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be
more susceptible to damage because very small parametric changes could cause the device not to meet its published
specifications.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date. Copyright © 2006, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
SN761678B
TV TUNER IC www.ti.com
SLES185 – JUNE 2006

FUNCTIONAL BLOCK DIAGRAM

UHF OSC B1
UHF OSC C1
UHF OSC C2
UHF OSC B2
VLO OSC B

VLO OSC C

VHI OSC B

VHI OSC C

MIX OUT1
MIX OUT2
OSC GND

IF IN1
IF IN2

VCC
VHF-L VHF-H UHF
Oscillator Oscillator Oscillator
IF
Amplifier
IF OUT

IF GND
VHF UHF
VHF RF IN
Mixer Mixer

UHF RF IN

CP
1/8 1/32, 1/33 15-Bit
Prescaler Prescaler Counter

RF GND VTU
Operational
Amplifier
XTAL
512/640/1024 Phase Charge
XTAL Oscillator
Divider Detector Pump
4 MHz

NPN Band-Switch Port

SCL 2
I C Bus
SDA Interface

AS

5-Level
ADC
BS4
ADC

BS1

BS2

BS3

B0089-02

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TV TUNER IC
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Terminal Functions
TERMINAL
DESCRIPTION SCHEMATIC
NAME NO.
ADC 19 ADC input Figure 1
AS 18 Address selection input Figure 2
BS1 21 Band-switch 1 output (NPN emitter follower) Figure 4
BS2 22 Band-switch 2 output (NPN emitter follower) Figure 4
BS3 20 Band-switch 3 output (NPN emitter follower) Figure 4
BS4 28 Band-switch 4 output (NPN emitter follower) Figure 4
CP 13 Charge-pump output Figure 5
IF GND 10 IF ground
IF IN1 23 IF amplifier input 1 Figure 3
IF IN2 24 IF amplifier input 2 Figure 3
IF OUT 12 IF output Figure 6
MIX OUT1 25 Mixer output 1 Figure 7
MIX OUT2 26 Mixer output 2 Figure 7
OSC GND 3 Oscillator ground
RF GND 27 RF ground
SCL 16 Serial clock input Figure 8
SDA 17 Serial data input/output Figure 9
UHF OSC B1 6 UHF oscillator base 1 Figure 10
UHF OSC B2 9 UHF oscillator base 2 Figure 10
UHF OSC C1 7 UHF oscillator collector 1 Figure 10
UHF OSC C2 8 UHF oscillator collector 2 Figure 10
UHF RF IN 30 UHF RF input Figure 11
VCC 11 Supply voltage for mixer/oscillator/PLL: 5 V
VHF RF IN 29 VHF RF input Figure 12
VHI OSC B 2 VHF HIGH oscillator base Figure 13
VHI OSC C 1 VHF HIGH oscillator collector Figure 13
VLO OSC B 5 VHF LOW oscillator base Figure 14
VLO OSC C 4 VHF LOW oscillator collector Figure 14
VTU 14 Tuning voltage amplifier output Figure 15
XTAL 15 4-MHz crystal oscillator input Figure 16

150 kW

19 18

50 kW

S0159-01

S0133-03

Figure 1. Figure 2.

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TV TUNER IC www.ti.com
SLES185 – JUNE 2006

23
20 p

20 p
24
20
21
22
50 kW 28

S0138-02

Figure 3. Figure 4.

12

13

S0155-01

S0156-01

Figure 5. Figure 6.

25

26

16

S0160-01

S0136-03

Figure 7. Figure 8.

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TV TUNER IC
SLES185 – JUNE 2006

8 7

17

9 6

3 kW 3 kW

S0133-02

S0130-01

Figure 9. Figure 10.

30 29

S0142-05 S0142-04

Figure 11. Figure 12.

1 4

2 5

3 kW 3 kW 3 kW 3 kW

S0129-01 S0129-02

Figure 13. Figure 14.

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TV TUNER IC www.ti.com
SLES185 – JUNE 2006

14

15

S0158-01

S0157-01

Figure 15. Figure 16.

Absolute Maximum Ratings

(1)
over operating free-air temperature range (unless otherwise noted)
Supply voltage range, VCC (2) VCC (pin 11) –0.4 V to 6.5 V
Input voltage 1, VGND (2) OSC GND, RF GND (pins 3, 27) –0.4 V to 0.4 V
Input voltage 2, VVTU (2) VTU (pin 14) –0.4 V to 35 V
Input voltage 3, VIN (2) Other pins (1, 2, 4–9, 12, 13, 15–26, 28–30) –0.4 V to 6.5 V
Continuous total dissipation, PD (3) TA ≤ 25°C 1071 mW
Operating free-air temperature range, TA –20°C to 85°C
Storage temperature range, Tstg –65°C to 150°C
Maximum junction temperature, TJ 150°C
Maximum short-circuit time, tSC(max) Each pin to VCC or to GND 10 s

(1) Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating
conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) Voltage values are with respect to the IF GND of the circuit.
(3) Derating factor is 8.57 mW/°C for TA ≥ 25°C.

Recommended Operating Conditions

MIN NOM MAX UNIT
Supply voltage, VCC 4.5 5 5.5 V
Tuning supply voltage, VTU 30 33 V
Output current of band switch, IBS One port on 10 mA
Operating free-air temperature, TA –20 85 °C

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TV TUNER IC
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Electrical Characteristics – Total Device and Serial Interface

VCC = 4.5 V to 5.5 V, TA = –20°C to 85°C (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
ICC1 Supply current 1 60 mA
ICC2 Supply current 2 One band switch on (IBS = 10 mA) 70 mA
VIH High-level input voltage (SCL, SDA) 2.8 VCC V
VIL Low-level input voltage (SCL, SDA) 1.4 V
IIH High-level input current (SCL, SDA) 10 µA
IIL Low-level input current (SCL, SDA) –10 µA
Power-on-reset supply voltage (threshold of supply
VPOR 2.1 2.8 3.6 V
voltage between reset and operation mode)
I2C Interface
VASH Address-select high-input voltage (AS) VCC = 5 V 4.5 5 V
VASM1 Address-select mid1-input voltage (AS) VCC = 5 V 2 3 V
VASM2 Address-select mid2-input voltage (AS) VCC = 5 V 1 1.5 V
VASL Address-select low-input voltage (AS) VCC = 5 V 0.5 V
IASH Address-select high-input current (AS) VCC = 5 V, TA = 25°C 140 µA
IASL Address-select low-input current (AS) VCC = 5 V, TA = 25°C –50 µA
VADC ADC input voltage See Table 8 0 VCC V
IADH ADC high-level input current VADC = VCC 10 µA
IADL ADC low-level input current VADC = 0 V –50 µA
VOL Low-level output voltage (SDA) VCC = 5 V, IOL = 3 mA 0.4 V
lSDAH High-level output leakage current (SDA) VSDA = 5.5 V 10 µA
fSCL Clock frequency (SCL) 100 400 kHz
I2C Timing (see Figure 17)
thd(DAT) Data hold time 0 µs
t(BUF) Bus free time 1.3 µs
thd(STA) Start hold time 0.6 µs
t(Low) SCL-low hold time 1.3 µs
t(High) SCL-high hold time 0.6 µs
tsu(STA) Start setup time 0.6 µs
tsu(DAT) Data setup time 0.1 µs
tr SCL, SDA rise time 0.3 µs
tf SCL, SDA fall time 0.3 µs
tsu(STO) Stop setup time 0.6 µs

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TV TUNER IC www.ti.com
SLES185 – JUNE 2006

Electrical Characteristics – PLL and Band Switch

VCC = 4.5 V to 5.5 V, TA = –20°C to 85°C (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
N Divider ratio 15-bit frequency word 256 32767
fXTAL Crystal oscillator frequency RXTAL = 25 Ω to 300 Ω 3.2 4 4.48 MHz
ZXTAL Crystal oscillator input impedance 1.6 kΩ
VIXTAL2 Minimum reference input sensitivity (XTAL) 4 MHz, ac coupling with 0.1-µF capacitor 100 mVp-p
VVTUL Tuning amplifier low-level output voltage RL = 22 kΩ, VTU = 33 V 0.4 0.5 V
IVTUOFF Tuning amplifier leakage current (off) OS = 1, VTU = 33 V 10 µA
ICPH Charge-pump high-level input current CP = 1 280 µA
ICPL Charge-pump low-level input current CP = 0 60 µA
VCP Charge-pump output voltage PLL locked 1.95 V
ICPOFF Charge-pump leakage current T2 = 0, T1 = 1, VCP = 2 V, TA = 25°C –15 15 nA
IBS Band-switch driver output current 10 mA
VBS1 IBS = 10 mA 3
Band-switch driver output voltage V
VBS2 IBS = 10 mA, VCC = 5 V, TA = 25°C 3.5 3.9
IBSOFF Band-switch driver leakage current VBS = 0 V 3 µA

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TV TUNER IC
SLES185 – JUNE 2006

Electrical Characteristics – Mixer, Oscillator, IF Amplifier

VCC = 5 V, TA = 25°C, measured in Figure 18 reference measurement circuit at 50-Ω system,
IF filter characteristics: fpeak = 43 MHz (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
Gc11 Conversion gain 1 (mixer-IF amplifier), fin = 58 MHz (1) 22 25 28
dB
Gc13 VHF-LOW fin = 130 MHz (1) 22 25 28
Gc14 Conversion gain 1 (mixer-IF amplifier), fin = 136 MHz (1) 22 25 28
dB
Gc16 VHF-HIGH fin = 364 MHz (1) 22 25 28
Gc17 fin = 370 MHz (1) 26 29 32
Conversion gain 1 (mixer-IF amplifier), UHF dB
Gc19 fin = 804 MHz (1) 25 28 31
Gc21 Conversion gain 2 (mixer-IF amplifier), fin = 58 MHz (2) 16 19 22
dB
Gc23 VHF-LOW fin = 130 MHz (2) 16 19 22
Gc24 Conversion gain 2 (mixer-IF amplifier), fin = 136 MHz (2) 16 19 22
dB
Gc26 VHF-HIGH fin = 364 MHz (2) 16 19 22
Gc27 fin = 370 MHz (2) 20 23 26
Conversion gain 2 (mixer-IF amplifier), UHF dB
Gc29 fin = 804 MHz (2) 19 22 25
NF1 fin = 55.25 MHz 9.5
Noise figure, VHF-LOW dB
NF3 fin = 127.25 MHz 9.5
NF4 fin = 133.25 MHz 10
Noise figure, VHF-HIGH dB
NF6 fin = 361.25 MHz 10
NF7 fin = 367.25 MHz 11
Noise figure, UHF dB
NF9 fin = 801.25 MHz 11
CM1 fin = 55.25 MHz (3) 89
1% cross-modulation distortion, VHF-LOW dBµV
CM3 fin = 127.25 MHz (3) 89
CM4 fin = 133.25 MHz (3) 86
1% cross-modulation distortion, VHF-HIGH dBµV
CM6 fin = 361.25 MHz (3) 86
CM7 fin = 367.25MHz (3) 87
1% cross-modulation distortion, UHF dBµV
CM9 fin = 801.25 MHz (3) 87
VIFO1 fin = 55.25 MHz (4) 117
IF output voltage, VHF-LOW dBµV
VIFO3 fin = 127.25 MHz (4) 117
VIFO4 fin = 133.25 MHz (4) 117
IF output voltage, VHF-HIGH dBµV
VIFO6 fin = 361.25 MHz (4) 117
VIFO7 fin = 367.25MHz (4) 117
IF output voltage, UHF dBµV
VIFO9 fin = 801.25 MHz (4) 117
ΦOSC1 fin = 55.25 MHz (5) 88
Phase noise, VHF-LOW dBc/Hz
ΦOSC3 fin = 127.25 MHz (5) 88
ΦOSC4 fin = 133.25 MHz (5) 86
Phase noise, VHF-HIGH dBc/Hz
ΦOSC6 fin = 361.25 MHz (5) 86
ΦOSC7 fin = 367.25MHz (5) 84
Phase noise, UHF dBc/Hz
ΦOSC9 fin = 801.25 MHz (5) 84
Prescaler beat (6) 25 dBµV

(1) IF = 43 MHz, RF input level = 80 dBµV (see Figure 19)

(2) IF = 43 MHz, RF input level = 80 dBµV (see Figure 20)
(3) fundes = fdes ±6 MHz, Pin = 80 dBµV, AM 1 kHz, 30%, DES/CM = S/I = 46 dB
(4) IF = 45.75 MHz
(5) Offset = 10 kHz, RF input level = 70 dBµV
(6) Design parameter, not tested

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TV TUNER IC www.ti.com
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FUNCTIONAL DESCRIPTION

I2C Bus Mode

I2C Write Mode (R/W = 0)

Table 1. Write Data Format

MSB LSB
Address byte (ADB) 1 1 0 0 0 MA1 MA0 R/W = 0 A (1)
Divider byte 1 (DB1) 0 N14 N13 N12 N11 N10 N9 N8 A (1)
Divider byte 2 (DB2) N7 N6 N5 N4 N3 N2 N1 N0 A (1)
Control byte (CB) 1 CP T2 T1 T0 RSA RSB OS A (1)
Band-switch byte (BB) X X X X BS4 BS3 BS2 BS1 A (1)

(1) A = Acknowledge

Table 2. Write Data Symbol Description

SYMBOL DESCRIPTION DEFAULT
MA[1:0] Address-set bits (see Table 3)
Programmable counter set bits
N[14:0] N = N14 × 214 + N13 × 213 + ... + N1 × 2 + N0 N14 = N13 = N12 = ... = N0 = 0
Oscillation frequency = fr × 8 × N
fr = Reference frequency = 4 MHz/Reference divider
Charge-pump current-set bit
CP CP = 1
60 µA (CP = 0), 280 µA (CP = 1)
Test bits (see Table 4)
T[2:0] T[2:0] = 001
Normal mode: T2 = 0, T1 = 0, T0 = 1/0
RSA, RSB Reference divider ratio selection bits (see Table 5) RSA = 0, RSB = 1
Tuning amplifier control bit
OS Tuning voltage on (OS = 0) OS = 0
Tuning voltage off, high impedance (OS = 1)
Band-switch control bits
BSn = 0: Tr = OFF BSn = 1: Tr = ON
Band selection by BS1, BS2, BS4
BS[4:1] BSn = 0
BS1(VL) BS2(VH) BS4(U)
1 0 0 VHF-LO
X 1 0 VHF-HI
X X 1 UHF
X Don't care

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TV TUNER IC
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Table 3. Address Selection

MA1 MA0 VOLTAGE APPLIED ON AS INPUT
0 0 LOW: 0 V to 0.1 VCC
0 1 MID2: open, or 0.2 VCC to 0.3 VCC
1 0 MID1: 0.4 VCC to 0.6 VCC
1 1 HIGH: 0.9 VCC to VCC

(1)
Table 4. Test Bits
T2 T1 T0 DEVICE OPERATION NOTE
0 0 0 Normal operation
0 0 1 Normal operation Default
0 1 X Charge pump is off.
1 1 0 Charge pump is sink.
1 1 1 Charge pump is source.
1 0 X Test mode ADC not available

(1) Not used for other bit patterns

Table 5. Reference Divider Ratio

RSA RSB REFERENCE DIVIDER RATIO
X 0 640
0 1 1024
1 1 512

I2C Read Mode (R/W = 1)

Table 6. Read Data Format

MSB LSB
Address byte (ADB) 1 1 0 0 0 MA1 MA0 R/W = 1 A (1)
Status byte (SB) POR FL 1 1 1 A2 A1 A0 –

(1) A = Acknowledge

Table 7. Read Data Symbol Description

SYMBOL DESCRIPTION DEFAULT
MA[1:0] Address-set bits (see Table 3)
Power-on-reset flag
POR POR set: Power on POR = 1
POR reset: End-of-data transmission procedure
In-lock flag
FL
PLL locked (FL = 1), PLL unlocked (FL = 0)
A[2:0] Digital data of ADC (see Table 8)

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Table 8. ADC Level

A2 A1 A0 VOLTAGE APPLIED ON ADC INPUT (1)
1 0 0 0.6 VCC to VCC
0 1 1 0.45 VCC to 0.6 VCC
0 1 0 0.3 VCC to 0.45 VCC
0 0 1 0.15 VCC to 0.3 VCC
0 0 0 0 V to 0.15 VCC

(1) Accuracy is 0.03 × VCC.

t(High)

tr

t(Low)

SCL

thd(STA)
tsu(DAT)
tf
thd(DAT ) tsu(STO)
tsu(STA)

SDA

t(BUF)
T0101-01

2
Figure 17. I C Timing Chart

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TV TUNER IC
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APPLICATION INFORMATION

SCL 16 SCL XTAL 15

C28 R10 X1
SDA 17 SDA VTU 14 TU
R11 R7
C29 C23 R8 C24
AS 18 AS CP 13
R12 C22
C30
ADC 19 ADC IF OUT 12 IF OUT
R13 C20
20 BS3 VCC 11 VCC
BS3 C18
C21
BS1 IF GND 10
21 BS1
R3 C17
BS2
L7 22 BS2 UHF OSC B2 9
R19 C12 C13
L3 R4
C31 23 IF IN1 UHF OSC C2 8 R5
L8 C11 VC3
C32 24 IF IN2 UHF OSC C1 7
C14
L5 C10
C33
25 MIX OUT1 UHF OSC B1 6
R18 C9 L4
C36 C34
26 MIX OUT2 VLO OSC B 5
R14 L6 C35 R21 C6
27 RF GND VLO OSC C 4
C5 R2
BS4 28 BS4 OSC GND 3 VC2 C7
C8
VIN 29 VHF RF IN VHI OSC B 2 L2
C38 R20 C2
R16 30 UHF RF IN VHI OSC C 1
C1 L1
UIN
C39 C4
C3
R17
C16
VC1
R1

NOTE: This application information is advisory and a performance check is required for actual application circuits. TI
assumes no responsibility for the consequences of the use of this circuit, nor for any infringement of patent or patent
rights of third parties that may result from its use.

Figure 18. Reference Measurement Circuit

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TV TUNER IC www.ti.com
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APPLICATION INFORMATION (continued)

Component Values for Measurement Circuit
PART NAME VALUE PART NAME VALUE
C1 2p L1 φ2.4 mm 4T 0.4 mm
C2 2p L2 φ3.0 mm 8T 0.32 mm
C3 82 p L3 φ3.0 mm 2T 0.4 mm
C4 Open L4 φ2.0 mm 3T 0.4 mm
C5 2p L5 φ2.4 mm 16T 0.26 mm
C6 2p L6 φ2.4 mm 16T 0.26 mm
C7 47 p L7 Open
C8 3p L8 Open
C9 1.5 p
C10 1p R1 33 k
C11 1p R2 33 k
C12 1.5 p R3 22 k
C13 12 p R4 33 k
C14 100 p R5 22 k
C16 2.2 nF/50 V R7 22 k
C17 2.2 n/50 V R8 22 k
C18 2.2 n/50 V R10 330
C20 2.2 n R11 330
C21 4.7 n R12 330
C22 2.2 n R13 Short
C23 0.1 µ/50 V R14 Short
C24 2.2 n/50 V R16 Open
C27 68 p R17 Open
C28 Open R18 20
C29 Open R19 20
C30 Open R20 20
C31 Short
C32 Short
C33 Open U1 SN761678B
C34 22 pF
C35 Open VC1 1T363A
C36 4.7 n VC2 1T363A
C38 2.2 n VC3 1T363A
C39 2.2 n
X1 4 MHz

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APPLICATION INFORMATION (CONTINUED)

Test Circuits

SG DUT Spectrum
Analyzer
RF IN IF OUT
50 W Gc1 = 20log(VOUT/VIN1)
50 W
VIN1 VOUT

Figure 19. Measurement Circuit of Conversion Gain 1

SG DUT Spectrum
Analyzer
RF IN IF OUT
50 W GC2 = 20log(VOUT/VIN2)
VOUT 50 W
50 W VIN2

Figure 20. Measurement Circuit of Conversion Gain 2

NF
Meter

Noise
DUT
Source

B0090-01

Figure 21. Noise-Figure Measurement Circuit

Signal
Generator
fdes: P = 80 dBmV
Mix Modulation
Pad DUT
Analyzer
fdes ±6 MHz
AM 30%, 1 kHz
Signal
Generator

B0091-01

Figure 22. 1% Cross-Modulation-Distortion Measurement Circuit

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TV TUNER IC www.ti.com
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TYPICAL CHARACTERISTICS

Band-Switch Driver Output Voltage (BS1–BS4)

BAND-SWITCH OUTPUT CURRENT
vs
OUTPUT VOLTAGE

5
VCC = 5.5 V

VCC = 5 V
VBS – BS Output Voltage – V 4
VCC = 4.5 V

0 −2 −4 −6 −8 −10 −12 −14 −16 −18 −20

IBS − BS Current − mA
G001
Figure 23. Band-Switch Driver Output Voltage

S-Parameter

50MHz

400MHz

Figure 24. VHF Input

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TYPICAL CHARACTERISTICS (continued)

900MHz 300MHz

Figure 25. UHF Input

60MHz

30MHz

Figure 26. IF Output

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 PACKAGE OPTION ADDENDUM

www.ti.com 26-Mar-2014

PACKAGING INFORMATION

Orderable Device Status Package Type Package Pins Package Eco Plan Lead/Ball Finish MSL Peak Temp Op Temp (°C) Device Marking Samples
(1) Drawing Qty (2) (6) (3) (4/5)

SN761678BDBTR OBSOLETE TSSOP DBT 30 TBD Call TI Call TI -20 to 85 B1678B

SN761678BDBTRG4 OBSOLETE TSSOP DBT 30 TBD Call TI Call TI -20 to 85 B1678B
SN761678BDCHR OBSOLETE TSSOP DCH 30 TBD Call TI Call TI -20 to 85 1678BDCH

(1)
The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.

(2)
Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability
information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that
lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between
the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight
in homogeneous material)

(3)
MSL, Peak Temp. - The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.

(4)
There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device.

(5)
Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation
of the previous line and the two combined represent the entire Device Marking for that device.

(6)
Lead/Ball Finish - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead/Ball Finish values may wrap to two lines if the finish
value exceeds the maximum column width.

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