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ti AP6684
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Quad-band GPRS Front-end Module
with Four UMTS Ports
Datasheet
id

VERSION 1.00 24-Dec-2012

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This document is commercially confidential and must NOT be disclosed to third parties without prior consent.
The information provided herein is believed to be reliable. But production testing may not include testing of
all parameters. AIROHA Technology Corp. reserves the right to change information at any time without
notification. ( HTTP://WWW.AIROHA.COM.TW TEL:+886-3-6128800 FAX:+886-3-6128833 sales@airoha.com.tw )
AP6684
Quad-Band GPRS Front-End Module
with Four UMTS Ports

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This document is commercially confidential and must NOT be disclosed to

third parties without prior consent.
The information provided herein is believed to be reliable. But production
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testing may not include testing of all parameters. AIROHA Technology

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Corp. reserves the right to change information at any time without
notification.
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AP6684 Front-end Module Page 2 of 15 CONFIDENTIAL

Datasheet
Version 1.00 24 Dec 2012 Copyright © 2012, Airoha Technology Corp.
AP6684
Quad-Band GPRS Front-End Module
with Four UMTS Ports

Revision History
Version Change Summary Date Author
1.00 Created 24-Dec-12 Chad Huang

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INDEX
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1 Features .....................................................................................................................4
2 Applications ................................................................................................................4
3 Description .................................................................................................................4
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4 Pin Assignment...........................................................................................................5
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5 Block Diagram ............................................................................................................7
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6 Interface .....................................................................................................................7
7 Electrical Characteristics ............................................................................................8
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7.1 Absolute Maximum Ratings ..................................................................................8

7.2 Recommend Operating Conditions .......................................................................8
7.3 Electrical Specification ..........................................................................................9
8 Package Dimension......................................................................................................14
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AP6684 Front-end Module Page 3 of 15 CONFIDENTIAL

Datasheet
Version 1.00 24 Dec 2012 Copyright © 2012, Airoha Technology Corp.
AP6684
Quad-Band GPRS Front-End Module
with Four UMTS Ports
TRX1 TRX2

Features
 Quad-band GSM, and Receive RFIN_HB HB PA

Front-end Module with Four High MODE

SP8T
SW

Linearity/ Low Insertion Loss TRX VRAMP

TX_EN Controller Antenna

Ports BS1

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BS2
 High Efficiency
RFIN_LB LB PA
— 38% for GSM850/EGSM900
— 35% for DCS1800/PCS1900



0dBm to 6dBm Drive Level
50Ω Matched Input/Output
>50dB Dynamic range
ti Description
TRX3 TRX4
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 Integrated Low Pass Filter for AP6684 is a quad-band GSM/GPRS ( GSM850 /
High Order Harmonics Rejection GSM900 / DCS1800 / PCS1900 ) frond-end
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 >8kV ESD Protection at Antenna module (FEM) with four high linearity/ low
Port insertion loss TRX ports for multimode
 Small Outline applications.
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— 6mm x 6mm x 1.00mm

This front-end module integrates high power/high
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— 28-pin configuration
efficiency PA blocks, high linearity/low insertion
Applications loss antenna switch and controller in a compact
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module. In addition, the built-in low pass filter

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 Multimode Mobile Phone

rejects higher order harmonics and eliminates the
— Class 4 GSM850/GSM900
need of external low pass filter network.
— Class 1 DCS/PCS
— Class 12 GPRS Multi-slot
The AP6684 provides 50Ω matched input and
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operation
output ports requiring no external matching
— Four high linearity TRX ports
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network. It also integrates an ESD protection

for 3G application
circuit to provide robust ESD protection at the
antenna port.

AP6684 Front-end Module Page 4 of 15 CONFIDENTIAL

Datasheet
Version 1.00 24 Dec 2012 Copyright © 2012, Airoha Technology Corp.
AP6684
Quad-Band GPRS Front-End Module
with Four UMTS Ports

Pin Assignment

al GND

TRX4
GND

GND

ANT

NC
GND

GND
1

2
28
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27 26 25 24 23 22

21
NC

TRX3
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GND 3 20 TRX2

AIROHA
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GND 4 19 TRX1

GND 5 18 VRAMP
AP6684
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GND 6 17 TX_EN
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GND 7 16 MODE
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GND 8 9 10 11 12 13 14 15 GND
BS1
LB_IN
HB_IN

BS2

VBAT

VCC
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Top View

AP6684 Front-end Module Page 5 of 15 CONFIDENTIAL

Datasheet
Version 1.00 24 Dec 2012 Copyright © 2012, Airoha Technology Corp.
AP6684
Quad-Band GPRS Front-End Module
with Four UMTS Ports

Pin Name Description

PIN SIGNAL TYPE DESCRIPTION

1 GND GND Ground

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2 GND GND Ground
3 GND GND Ground
4 GND GND Ground
5
6
7
GND
GND
GND
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GND
GND
GND
Ground
Ground
Ground
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8 GND GND Ground
9 HB_IN Input, Analog High Band RF Input port
10 LB_IN Input, Analog Low Band RF Input port
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11 BS2 Input, Digital Select the Band of Operation

12 BS1 Input, Digital Select the Band of Operation
13 VBAT Power Power Supply
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14 VCC Power Power Supply

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15 GND GND Ground
16 MODE Input, Digital Select the Band of Operation
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17 TX_EN Input, Digital TX mode enable

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18 VRAMP Input, Analog RAMP Control

19 TRX1 Input/Output, Analog W-CDMA TRX port
20 TRX2 Input/Output, Analog W-CDMA TRX port
21 TRX3 Input/Output, Analog W-CDMA TRX port
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22 NC No Use

23 TRX4 Input/Output, Analog W-CDMA TRX port

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24 NC No Use

25 GND GND Ground

26 ANT Input/Output, Analog Antenna port

27 GND GND Ground

28 GND GND Ground

AP6684 Front-end Module Page 6 of 15 CONFIDENTIAL

Datasheet
Version 1.00 24 Dec 2012 Copyright © 2012, Airoha Technology Corp.
AP6684
Quad-Band GPRS Front-End Module
with Four UMTS Ports

Block Diagram
TRX1 TRX2

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RFIN_HB HB PA

MODE
VRAMP
TX_EN Controller
ti SP8T
SW

Antenna
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BS1
BS2
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RFIN_LB LB PA
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TRX3 TRX4
荣
Interface
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Control Table
MODE TX_EN MODE BS1 BS2
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Standby 0 0 0 0
TRX1 0 1 0 0
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TRX2 0 1 1 0
TRX3 0 1 0 1
TRX4 0 0 1 0
LB_GPRS 1 0 0 1
HB_GPRS 1 0 1 1

AP6684 Front-end Module Page 7 of 15 CONFIDENTIAL

Datasheet
Version 1.00 24 Dec 2012 Copyright © 2012, Airoha Technology Corp.
AP6684
Quad-Band GPRS Front-End Module
with Four UMTS Ports

Electrical Characteristics
Absolute Maximum Ratings

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AP6684 could be damaged by any stress in excess of the absolute maximum ratings listed below.

ITEM MIN. MAX.

Power supply voltage

Input RF Power
VBAT

VCC
ti -0.3 V

-0.3 V
5.5 V

5.5 V

10dBm
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Power Control Voltage (VRAMP) -0.3 V 2V

Output Load VSWR 20：1

Storage temperature – 55C +150C

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Recommended Operating Conditions

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Recommended operating ambient temperature range Ta= -20 to 85C
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Item Symbol Test Condition Min. Typ. Max. Unit

VBAT 3 4.8 V
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Supply Voltage
VCC 3 4.8 V

Operating temperature – 20 +85 C

Low TXEN _ Low 0 0.5 V

TX_EN Control Voltage
High TXEN _ High 1.25 VBAT V
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Low Ctrl 0 _ Low 0 0.5 V

BS1 Control Voltage
High Ctrl 0 _ High 1.25 VBAT V
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Low Ctrl 1 _ Low 0 0.5 V

BS2 Control Voltage
High Ctrl 1 _ High 1.25 VBAT V

Low Ctrl 2 _ Low 0 0.5 V

Mode Control Voltage
High Ctrl 2 _ High 1.25 VBAT V

VRAMP max., GPRS mode Max. Pout 1.8 V

VRAMP min., GPRS mode Min. Pout 0.2 V

VRAMP, EDGE HP mode 1.25 1.8 V

VRAMP, EDGE LP mode 0 0.4 V

AP6684 Front-end Module Page 8 of 15 CONFIDENTIAL

Datasheet
Version 1.00 24 Dec 2012 Copyright © 2012, Airoha Technology Corp.
AP6684
Quad-Band GPRS Front-End Module
with Four UMTS Ports

Electrical Specification
Typical values are tested under VBAT=3.5V, PIN=3dBm, Duty Cycle=12.5%, Pulse Width=577us,
Ta=25oC unless otherwise specified

GSM 850 GMSK Mode

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PARAMETER CONDITION MIN. TYP. MAX. UNIT

Frequency Range 824 849 MHz

Input Power

Input VSWR
ti Pout=5 ~33dBm
0

2.5:1
6 dBm
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Max. Output Power VRAMP=1.8V 33 33.5 dBm

Power Added Efficiency Max. Output Power 38 %

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Min. Power into 3:1 VSWR Load VSWR=3:1 30.5 dBm

Power Control Dynamic Range VRAMP=0.2 to 1.8V 50 dB

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2nd Harmonic Pout=33dBm -33 dBm

3rd Harmonic Pout=33dBm -33 dBm

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All Other Harmonics up to

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Pout=33dBm -33 dBm

12.75GHz
Non-Harmonic Spurious up to
Pout=33dBm -36 dBm
12.75GHz
TXEN=Low, Pin=6dBm,
Forward Isolation 1 -55 dBm
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VRAMP=0.2V
TXEN=High, Pin=6dBm,
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Forward Isolation 2 -30 dBm

VRAMP=0.2V

Output Noise 869~894 MHz Pout=33dBm, RBW=100 -82 dBm

Power kHz
1930~1990 MHz -85 dBm

Load VSWR=10:1, all

Output Load VSWR Stability -36 dBm
phase angles, Max. Pout
Load VSWR=20:1, all No damage or permanent
Output Load VSWR Ruggedness
phase angles, Max. Pout degradation to device

AP6684 Front-end Module Page 9 of 15 CONFIDENTIAL

Datasheet
Version 1.00 24 Dec 2012 Copyright © 2012, Airoha Technology Corp.
AP6684
Quad-Band GPRS Front-End Module
with Four UMTS Ports

Typical values are tested under VBAT=3.5V, PIN=3dBm, Duty Cycle=12.5%, Pulse Width=577us,
Ta=25oC unless otherwise specified

EGSM 900 GMSK Mode

PARAMETER CONDITION MIN. TYP. MAX. UNIT

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Frequency Range 880 915 MHz

Input Power 0 6 dBm

Input VSWR

Max. Output Power

ti Pout=5 ~33dBm

VRAMP=1.8V 33
2.5 :1

33.5 dBm
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Power Added Efficiency Max. Output Power 38 %

Min. Power into 3:1 VSWR Load VSWR=3:1 30.5 dBm

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Power Control Dynamic Range VRAMP=0.2 to 1.8V 50 dB

2nd Harmonic Pout=33dBm -33 dBm

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3rd Harmonic Pout=33dBm -33 dBm

All Other Harmonics up to

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Pout=33dBm -33 dBm

12.75GHz
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Non-Harmonic Spurious up to
Pout=33dBm -36 dBm
12.75GHz
TXEN=Low, Pin=6dBm,
Forward Isolation 1 -55 dBm
VRAMP=0.2V
TXEN=High, Pin=6dBm,
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Forward Isolation 2 -30 dBm

VRAMP=0.2V
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925~935 MHz -82 dBm

Output Noise Pout=33dBm, RBW=100
935~960 MHz -82 dBm
Power kHz

1805~1880 MHz -85 dBm

Load VSWR=10:1, all

Output Load VSWR Stability -36 dBm
phase angles, Max. Pout
Load VSWR=20:1, all No damage or permanent
Output Load VSWR Ruggedness
phase angles, Max. Pout degradation to device

AP6684 Front-end Module Page 10 of 15 CONFIDENTIAL

Datasheet
Version 1.00 24 Dec 2012 Copyright © 2012, Airoha Technology Corp.
AP6684
Quad-Band GPRS Front-End Module
with Four UMTS Ports

Typical values are tested under VBAT=3.5V, PIN=3dBm, Duty Cycle=12.5%, Pulse Width=577us,
Ta=25oC unless otherwise specified

DCS 1800 GMSK Mode

PARAMETER CONDITION MIN. TYP. MAX. UNIT

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Frequency Range 1710 1785 MHz

Input Power 0 6 dBm

Input VSWR

Max. Output Power

ti Pout =0 ~30dBm

VRAMP=1.8V 30
2.5 :1

31 dBm
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Power Added Efficiency Max. Output Power 35 %

Min. Power into 3:1 VSWR Load VSWR=3:1 27.5 dBm

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Power Control Dynamic Range VRAMP=0.2 to 1.8V 50 dB

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2nd Harmonic Pout=30dBm -33 dBm

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3rd Harmonic Pout=30dBm -33 dBm
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All Other Harmonics up to

Pout=30dBm -33 dBm
12.75GHz
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Non-Harmonic Spurious up to
Pout=30dBm -36 dBm
12.75GHz
TXEN=Low, Pin =6dBm,
Forward Isolation 1 -57 dBm
VRAMP=0.2V
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TXEN=High, Pin=6dBm,
Forward Isolation 2 -30 dBm
VRAMP=0.2V
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925~935 MHz -87 dBm

Output Noise Pout=30dBm,
935~960 MHz -87 dBm
Power RBW=100kHz
1805~1880 MHz -85 dBm

Load VSWR=10:1, all

Output Load VSWR Stability -36 dBm
phase angles, Max. Pout
Load VSWR=20:1, all No damage or permanent
Output Load VSWR Ruggedness
phase angles, Max. Pout degradation to device

AP6684 Front-end Module Page 11 of 15 CONFIDENTIAL

Datasheet
Version 1.00 24 Dec 2012 Copyright © 2012, Airoha Technology Corp.
AP6684
Quad-Band GPRS Front-End Module
with Four UMTS Ports

Typical values are tested under VBAT=3.5V, PIN=3dBm, Duty Cycle=12.5%, Pulse Width=577us,
Ta=25oC unless otherwise specified

PCS 1900 GMSK Mode

PARAMETER CONDITION MIN. TYP. MAX. UNIT

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Frequency Range 1850 1910 MHz

Input Power 0 6 dBm

Input VSWR

Max. Output Power

ti Pout =0 ~30dBm

VRAMP=1.8V 30
2.5 :1

31 dBm
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Power Added Efficiency Max. Output Power 35 %

Min. Power into 3:1 VSWR Load VSWR=3:1 27 dBm

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Power Control Dynamic Range VRAMP=0.2 to 1.8V 50 dB

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2nd Harmonic Pout=30dBm -33 dBm

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3rd Harmonic Pout=30dBm -33 dBm
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All Other Harmonics up to

Pout=30dBm -33 dBm
12.75GHz
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Non-Harmonic Spurious up to
Pout=30dBm -36 dBm
12.75GHz
TXEN=Low, Pin =6dBm,
Forward Isolation 1 -57 dBm
VRAMP=0.2V
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TXEN=High, Pin=6dBm,
Forward Isolation 2 -30 dBm
VRAMP=0.2V
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Output Noise 869~894 MHz Pout=30dBm, -87 dBm

Power 1930~1990 MHz RBW=100kHz -85 dBm

Load VSWR=10:1, all

Output Load VSWR Stability -36 dBm
phase angles, Max. Pout

Load VSWR=20:1, all No damage or permanent

Output Load VSWR Ruggedness
phase angles, Max. Pout degradation to device

AP6684 Front-end Module Page 12 of 15 CONFIDENTIAL

Datasheet
Version 1.00 24 Dec 2012 Copyright © 2012, Airoha Technology Corp.
AP6684
Quad-Band GPRS Front-End Module
with Four UMTS Ports

Typical values are tested under VBAT=3.5V, Ta=25oC unless otherwise specified
UMTS TRX Mode

PARAMETER CONDITION MIN. TYP. MAX. UNIT

824 ~ 960 MHz 1.1 dB

Insertion Loss

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ANT. to TRX1 through TRX4
1710 ~ 2170 MHz 1.5 dB

824 ~ 960 MHz 1.5:1

Input VSWR
ANT. to TRX1 through TRX4

Isolation, Adjacent
ti 1710 ~ 2170 MHz 1.5:1
en
824 ~ 960 MHz,
Port TRX1 through TRX4 to 20 dB
1710 ~ 2170 MHz
any other adjacent port
Isolation, Non-adjacent
824 ~ 960 MHz,
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Port TRX1 through TRX4 to 25 dB

1710 ~ 2170 MHz
any other non-adjacent port
1 、 Tx = 836.5MHz at 20dBm;
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Blocker = 45MHz, 1718 MHz

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at -15dBm; Rx = 881.5MHz
IMD2,TRX1 through TRX4 -105 dBm
2、Tx = 1950MHz at 20dBm;
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Blocker= 190MHz, 4.09GHz

at -15dBm; Rx = 2.14GHz
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1、Tx = 836.5MHz at 20dBm;

Blocker=791.5MHz, 2544.5
MHz at -15dBm;Rx=881.5MHz
IMD3,TRX1 through TRX4 -105 dBm
2、Tx = 1.95GHz at 20dBm;
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Blocker=1.76GHz, 6.04GHz at
-15dBm; Rx = 2.14GHz
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GSM850/EGSM900 Tx mode:

LB Tx Leakage to TRX1 Freq = 824MHz to 915MHz,

0 dBm
through TRX4 VRAMP = VRAMP RATED for POUT =
33dBm at Antenna port.
DCS1800/PCS1900 Tx mode:
HB Tx Leakage to TRX1 Freq = 1710MHz to 1910MHz,
0 dBm
through TRX4 VRAMP = VRAMP RATED for POUT =
30dBm at Antenna port.

AP6684 Front-end Module Page 13 of 15 CONFIDENTIAL

Datasheet
Version 1.00 24 Dec 2012 Copyright © 2012, Airoha Technology Corp.
AP6684
Quad-Band GPRS Front-End Module
with Four UMTS Ports

Package Dimension

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AP6684 Front-end Module Page 14 of 15 CONFIDENTIAL

Datasheet
Version 1.00 24 Dec 2012 Copyright © 2012, Airoha Technology Corp.
AP6684
Quad-Band GPRS Front-End Module
with Four UMTS Ports

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PAD1 Indicator
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0.99
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TOP VIEW SIDE VIEW

AP6684 Front-end Module Page 15 of 15 CONFIDENTIAL

Datasheet
Version 1.00 24 Dec 2012 Copyright © 2012, Airoha Technology Corp.