IFRIFT3000 [QUALCOMM]
The QUALCOMM IFR3000⑩ and IFT3000⑩ Rx and Tx IF/Baseband processors; 高通IFR3000⑩和IFT3000⑩ Rx和Tx IF /基带的处理器
| 型号： | IFRIFT3000 |
| 厂家： | 
QUALCOMM INCORPORATED |
| 描述： | The QUALCOMM IFR3000⑩ and IFT3000⑩ Rx and Tx IF/Baseband processors |
| 文件： | 总4页 (文件大小：190K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
IFR3000™/IFT3000™ Rx IF/BASEBAND
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Q U A L C O M M C D M A T E C H N O L O G I E S
HTTP://WWW.CDMATECH.COM
E N A B L I N G T H E F U T U R E O F C O M M U N I C A T I O N S
FM
FM
SAW
Filter
I/Q FM
ADCs
I/Q FM
Filters
Rx
LNA
SAW
Quad
Demodulation
CDMA
AGC
SAW
I/Q CDMA
ADCs
I/Q CDMA
Filters
Filter
CDMA
Rx IF VCO
Clock
SBI
Generators
Control
D
U
P
L
IFR3000
E
X
E
R
Dual PLL
UHF/IF
MSM3000
UHF VCO
TCXO
Tx IF VCO
FM
Tx PLL
Filter
I/Q
DACs
I/Q
Discrete
IF Filter
Quad
Tx
SAW
CDMA
Filter
PA
Modulation
SSB
AGC
UPC/DA
SBI
GP ADC
w/ MUX
Control
IFT3000
IFR3000 and IFT3000 Devices as Part of QUALCOMM’s Fifth-Generation Chipset Dual-Mode Cellular (CDMA/AMPS) Handset Architecture
Overview
telephones. The IFR3000 and IFT3000 devices interface between the
radio-frequency (RF) section and the digital processing circuitry of the
telephone.
The QUALCOMM IFR3000™ and IFT3000™ Rx and Tx IF/Baseband
processors offer significant reduction in cost, size and pin count over
previous generation products. By integrating the functionality of three
Application Specific Integrated Circuits (ASICs) into two ASICs,
designers now possess IF-to-Baseband and Baseband-to-IF processing
power, and Rx and Tx Automatic Gain Control (AGC) circuitry on either
two 48-pin Low-profile Quad Flat Pack (LQFP) packages or two 48-pin
Bump Chip Carrier (BCC) packages.
Smaller Packaging
The IFR3000 and IFT3000 devices incorporate all the Rx and Tx
processing capability of the QUALCOMM Q5312 Analog Baseband
Processor (BBA2-shrink) together with the automatic gain control
functionality of the QUALCOMM Q5500™ Rx and Q5505™ Tx AGC
amplifiers. The result is a more economic, two-chip analog baseband
solution which provides handset designers over a 60% reduction
in size.
The IFR3000 and IFT3000 Rx and Tx IF/Baseband processors are
designed for use in dual-mode CDMA and FM portable cellular
IFR3000
IFR3000
48-pin BCC
(7mm x 7mm)
48-lead TQFP
(9mm x 9mm)
Q5312
(BBA2-shrink)
80-lead TQFP
(14mm x 14mm)
IFT3000
IFT3000
48-pin BCC
(7mm x 7mm)
48-lead TQFP
(9mm x 9mm)
Q5500
Q5505
(6x5 mm)
(6x5 mm)
48-lead TQFP
(162 mm2)
48-pin BCC
(98 mm2)
BBA2-shrink / AGC Amps
(256 mm2)
IFR3000 and IFT3000
Substantial Board Real Estate Savings
QUALCOMM INCORPORATED
CDMA TECHNOLOGIES
5775 MOREHOUSE DRIVE SAN DIEGO, CA 92121
http://www.cdmatech.com/about_us/contact.jsp
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Q U A L C O M M C D M A T E C H N O L O G I E S
HTTP://WWW.CDMATECH.COM
E N A B L I N G T H E F U T U R E O F C O M M U N I C A T I O N S
2
IFR3000™/IFT3000™ Rx IF/BASEBAND PROCESSORS
TCXO/N
Q_OFFSET I_OFFSET
DIV N
TCXO
CHIPx8
CHIPx8
4
CDMA
LPF
CDMA
ADC
RXQD[3:0]
RXID[3:2]
CDMA_IF
CDMA_IF/
AGC
AGC
2
CDMA
ADC
CDMA
LPF
SWITCH
VCONTROL
FM
LPF
FM
ADC
FM_RX_QDATA_RXID1
FM_IF
FM_IF/
FM_RX_CLK
FM_RX_STB
Q
DIV 2
I
FM
ADC
FM
LPF
FM_RX_IDATA_RXID0
* SBCK_SLEEP/
* SBST_IDLE/
* SBDT_FM/
SBI_EN
Serial Bus Interface
and
Mode Control Logic
RX VCO
* Dual-function pins
RXVCO_T1
RXVCO_T2
RXVCO_OUT
IFR3000 Functional Block Diagram
• Low-pass filtering for CDMA and FM I- and Q-component
baseband signal demodulation
IFR3000
The circuit blocks within the IFR3000 include
the Rx AGC amplifier with 90 dB dynamic range,
IF mixer and CDMA/FM lowpass filters for
• 4-bit ADCs convert CDMA I and Q analog baseband components
to digital baseband
• 8-bit ADCs convert FM I and Q analog baseband to digital baseband
• Clock generators for CDMA / AMPS operation
• VCO for generation of Rx LO mixing signal
• I- and Q-channel DC offset control inputs drive baseband DC
voltage offset to zero in CDMA and FM signal paths
• Operational Mode compatibility with the MSM2300™, MSM3000®
and MSM3100™ devices
down-converting IF to analog baseband, and
analog-to-digital converters (ADC) for converting
to digital baseband. The IFR3000 includes clock
generators that drive the telephone’s digital processor and a
voltage-controlled oscillator (VCO) which generates the Rx mixer
local oscillator (LO) signal.
• Enhanced features with MSM3000 device through three-line serial
bus interface (SBI):
IFR3000 Device Features
• Supports IS-98 (CDMA) and IS-19 (AMPS) standards for
dual-mode operation
– Slotted FM Mode
– Selective power-down
• 2.7 to 3.15 V supply voltage
– Mode selection
• Low current: 26 / 21 mA in CDMA Rx / FM Rx Modes
• Rx power control through 90 dB dynamic range AGC amplifier
• IF mixer for downconverting IF to analog baseband
• 48-lead LQFP and 48-pin BCC packaging options for dense
circuit assemblies
3
RBIAS
FM
LPF
FM_MOD
8
8-BIT
DAC
TXD[7:0]
LPF
LPF
2
TX_CLK
TX_CLK/
TXIF_OUT
TXIF_OUT/
AGC
S
8-BIT
DAC
VCONTROL
TXVCO_T1
TXVCO_T2
TCXO
I
Q
TX
VCO
PD_OUT
PD_ISET
DIV 2
PLL
LOCK_DET
* SBCK_SEL2
* SBST_IDLE/
* SBDT_FM/
ADC_ENABLE
Serial Bus Interface
and
Control Logic
GP
ADC
ADC_DATA
ADC_CLK
Analog
Multiplexer
SBI_EN
* Dual-function pins
SEL1_PA_ON ADC_IN1
ADC_IN2
ADC_IN3
IFT3000 Functional Block Diagram
• IF mixer upconverts analog baseband to IF
• Tx power control through 85 dB dynamic range AGC amplifier
• Programmable Tx PLL for generating Tx IF frequency
• VCO for generation of Tx LO mixing signal
• 8-bit general-purpose ADC with 3-input analog multiplexer and
selectable input ranges
IFT3000
The circuit blocks within the IFT3000 device
include digital-to-analog converters (DACs) for
converting digital baseband to analog baseband,
lowpass filters, a mixer for upconverting to IF and
an 85 dB dynamic range Tx AGC amplifier. The
• Operational Mode compatibility with the MSM2300 and MSM3000
devices
IFT3000 device includes a fully programmable
phase-locked loop (PLL) for generating Tx LO and IF frequencies. The
IFT3000 device also has an 8-bit general-purpose ADC with three
selectable inputs for monitoring battery level, RF signal strength and
phone temperature.
• Enhanced features with MSM3000 device through three-line serial
bus interface (SBI):
– Tx PLL phase-detector polarity
– Tx PLL programmability
– Punctured CDMA transmission
IFT3000 Device Features
– Selective power-down
• Supports IS-98 (CDMA) and IS-19 (AMPS) standards for dual-mode
operation
– Mode selection
• 48-lead LQFP and 48-pin BCC packaging options for dense circuit
assemblies
• Operates on 2.7 to 3.15 V supply voltage
• 8-bit DACs convert digital baseband signals to analog baseband
• CDMA and FM signal paths include lowpass filters for I and Q
output waveform smoothing
T
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Q U A L C O M M C D M A T E C H N O L O G I E S
HTTP://WWW.CDMATECH.COM
E N A B L I N G T H E F U T U R E O F C O M M U N I C A T I O N S
4
IFT3000/IFR3000 Interfaces
Both the IFR3000 device and IFT3000 device interface directly with
QUALCOMM’s Mobile Station Modem™ (MSM™) ASICs. The MSM
ASICs are CMOS VLSI integrated circuits that perform all digital
processing in the CDMA/FM subscriber unit. The combination of
IFR3000, IFT3000 devices and MSM family ASICs form the core of
the portable CDMA/FM subscriber unit.
Copyright © 2004 QUALCOMM Incorporated. All rights reserved. QUALCOMM and
MSM3000 are registered trademarks, and IFR3000, IFT3000, Q5500, Q5505,
MSM2300, MSM3100, Mobile Station Modem and MSM are trademarks of
QUALCOMM Incorporated. All other trademarks and service marks are the property of
their respective owners. Data subject to change without notice.
Printed in USA 4/2004 IFR/IFT3000-SS X10
QUALCOMM INCORPORATED
CDMA TECHNOLOGIES
5775 MOREHOUSE DRIVE SAN DIEGO, CA 92121
http://www.cdmatech.com/about_us/contact.jsp
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