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參數(shù)資料
| 型號： | QP1T |
| 廠商： | Mitel Networks Corporation |
| 英文描述： | CDMA/AMPS dual Band IF Receiver for Digital Phones |
| 中文描述： | 碼分多址/ AMPS二元雙頻手機的數(shù)字中頻接收機 |
| 文件頁數(shù)： | 1/9頁 |
| 文件大?。?/td> | 114K |
| 代理商： | QP1T |
1
Preliminary Information
SATURN
SATURN
CDMA/AMPS dual Band IF Receiver for Digital Phones
Preliminary Information
Description
The SATURN circuit is designed for use in dual band dual
mode mobile phones (CDMA/AMPS). The circuit is
designed to be compataible with digital baseband and
mixed signal circuit chips from Mitel (Planet Chip-set)
and Qualcomm (MSM2 and BBA). A wideband AGC
amplifier allows the input of CDMA or AMPS signal paths
with a range power management control options.
Features
G
Selectable IF input buffers with characteristic
impedance suitable for interface to IF CDMA and
FM SAW filter outputs
G
AGC amplifiers with 90dB of variable gain, fully
compensated for temperature variation
G
IQ demodulator with accurately defined output DC
level and low DC offsets
G
LO operating at twice frequency with high accuracy
quadrature generation
G
Sophisticated power management control operation
G
Overload indicator
DS4721
Issue 4.2
April 1999
Odering Information
SATURN/KG/QP1S
SATURN/KG/QP1T
Figure 1 Block diagram
Temperature
Comp.
DLL
I OUT
I
FM IFIN
Q OU T
Gain
Control
Mode
Control
CDMA IFIN
AGC
STARTUP
ENABLE
MODE CDM
V
V
PRESCALER
Overload
Indicator
O
BAND 1900
VHF VCC
VHF VEE
I
I
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