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PDF ( 数据手册 , 数据表 ) TO353

零件编号 TO353
描述 Tri-band/ Quad-mode RF Receiver
制造商 ATMEL Corporation
LOGO ATMEL Corporation LOGO 


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TO353 数据手册, 描述, 功能
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Features
AMPS/Cell Band and PCS Band CDMA/GPS Operation
Low-current Consumption
Excellent Noise and IP3 Performance
Adjustable Third Order intercept on LNA Stage
Flexible IF Frequency Range from 80 MHz to 230 MHz
Divide by 2 Prescaler
Benefits
Very Small 32-pin 5 mm x 5 mm Package
Few External Components
Fully ESD Protected
Applications
Quad-mode/Tri-band CDMA IS-95/98-based Mobile Phones with GPS Support
Electrostatic sensitive device.
Observe precautions for handling.
2.8 V Tri-band/
Quad-mode RF
Receiver for
CDMA/AMPS/
GPS
Description
The T0353 is a CDMA front-end receiver RFIC designed for Tri-band, quad-mode
operation. The device supports AMPS, Cell CDMA, PCS CDMA, and A-GPS opera-
tion. The IF range is from 80 MHz to 230 MHz with external tuning. The low-noise
amplifiers have an adjustable third order intercept point (IP3) to minimize inter-modu-
lation and cross-modulation effects. The mixers are designed for differential IF outputs
(single-ended or differential IF outputs for AMPS and GPS modes), and they feature
excellent linearity and low-noise figure.
The T0353 also integrates a divide-by-2 frequency divider to allow the use of only one
VCO module for both CDMA bands. However, it also has the option of connecting the
LO directly to the cellular mixer LO input. This device is available in a 5 mm x 5 mm
MLF package with 32 pins. The T0353 front-end receiver is capable of meeting all
electrical requirements in accordance with the TIA/EIA 98-C wireless communication
standard.
T0353
Preliminary
(Summary)
Rev. 4559AS–CDMA–10/02
1







TO353 pdf, 数据表
Cascade RF Electrical Characteristics (PCS Band)
Test conditions: Unless otherwise noted, the following conditions apply to typical performance specification under static
conditions: VCC = +2.75 V, TA = 25°C, RF = 1960 MHz, LO = 2143.6 MHz, IF = 183.6 MHz, LO input = -5.0 dBm, RF input
= -30 dBm (High-gain mode). In a cascaded configuration Gain and IP3 values are also influenced by the SAW filter. No
correction has been made for filter loss (2.4 dB) and interstage board trace losses.
No. Parameters
Test Conditions
Pin Symbol Min. Typ. Max. Unit Type*
Combined LNA and Mixer Performance (CDMA Modulation)
High-Gain High-Linearity Mode (HGHL)
Gain
Band_SEL = Low;
G
26 dB
Noise figure
Gain = High; LIN =
NF
2.4 dB
High
Input IP3
IIP3 -3.9 dBm
Supply current
Icc 30 mA
High-Gain Low-Linearity Mode (HGLL Paging mode)
Gain
Band_SEL = Low;
G
25 dB
Noise figure
Gain = High; LIN =
NF
2.5 dB
Low
Input IP3
IIP3 -6.7 dBm
Supply current
Icc 24 mA
*) Type means: A = 100% tested, B = 100% correlation tested, C = Characterized on samples, D = Design parameter
Cascade RF Electrical Characteristics (GPS Band)
Test conditions: Unless otherwise noted, the following conditions apply to typical performance specification under static
conditions: VCC = +2.75 V, TA = 25°C, RF = 1960 MHz, LO = 2143.6 MHz, IF = 183.6 MHz, LO input = -5.0 dBm, RF input
= -30 dBm (High-gain mode). In a cascaded configuration Gain and IP3 values are also influenced by the SAW filter. No
correction has been made for filter loss (1.7 dB) and interstage board trace losses.
No. Parameters
Test Conditions
Pin Symbol Min. Typ. Max. Unit Type*
Combined LNA and Mixer Performance
Gain
Band_SEL = Low;
G
33 dB
Noise figure
Gain = Low; LIN =
NF
1.8 dB
High
Input IP3
IIP3 -15 dBm
Supply current
Icc 23.5 mA
*) Type means: A = 100% tested, B = 100% correlation tested, C = Characterized on samples, D = Design parameter
8 T0353
4559AS–CDMA–10/02














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