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參數資料
| 型號： | W3030 |
| 英文描述： | W3030 3 V Dual-Mode IF Cellular Receiver |
| 中文描述： | W3030 3伏雙模蜂窩接收機中頻 |
| 文件頁數： | 6/22頁 |
| 文件大小： | 429K |
| 代理商： | W3030 |
Data Sheet
April 1999
W3030 3 V Dual-Mode IF Cellular Receiver
Lucent Technologies Inc.
6
Pin Information
(continued)
Table 1. Pin Descriptions
(continued)
Pin
Number
20
21
Pin Name
Pin Description
ENBD
ENBA
Enable Digital Mode.
Positive logic enable connection for digital mode operation.
Enable Analog Mode.
Positive logic enable connection for analog mode
operation.
Q Output.
Differential output from Q mixer of quadrature demodulator.
Q Output (Inverting).
Differential output from Q mixer of quadrature demodulator.
22
23
Q
Q
24
CLK
Clock Input.
Local oscillator (clock) input to quadrature demodulator phase shifter;
to be capacitively coupled. Input frequency must be four times second IF center
frequency.
I Output (Inverting).
Differential output from I mixer of quadrature demodulator.
25
I
26
27
I
I Output.
Differential output from I mixer of quadrature demodulator.
Automatic Gain Control.
AGC control input; to be connected to dc source of
0.25 V—1.55 V.
Common-Mode Voltage.
Common-mode voltage dc offset set point for I & Q
interface, typically V
CC
/2.
Digital Signal Ground.
Signal ground for digital section limiting amplifier; connect
to ground with 0.1 μF capacitor.
Digital Second IF Input.
Differential input to digital section AGC amplifier; to be
directly coupled to dielectric sources such as ceramic filters. Pin 30 is
approximately 2 k
with pin 29 ac-grounded.
Digital Second IF Input (Inverting).
Differential input to digital section AGC
amplifier. To be ac-grounded.
Second IF Ground.
Power supply ground for both analog and digital second IF
amplifier and demodulator sections.
AGC
28
VCM
29
IFD
ACG
30
IFD
IN
31
IFD
IN
32
GND
2
Table 2. Digital Control Pin Truth Table
Control Pin
ENBA
LOW
LOW
Mode/Function
ENBD
LOW
HIGH
All Sleep.
All receive circuits powered down, supply current <10 μA.
Digital Receive.
First IF mixing stage, AGC amp and I/Q quadrature
demodulators active.
Analog/FM Receive.
First IF mixing stage, 40 dB IF amp, 60 dB limiting amp,
RSSI, and FM detector active.
All Active.
All receive circuits functional, e.g., digital mode I & Q demodulator
used with analog RSSI.
HIGH
LOW
HIGH
HIGH
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