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參數(shù)資料
| 型號： | RX3930 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Low Power ISM-band FM/FSK Receiver IC |
| 中文描述： | 低功耗的ISM波段調(diào)頻/ FSK接收器集成電路 |
| 文件頁數(shù)： | 3/8頁 |
| 文件大?。?/td> | 126K |
| 代理商： | RX3930 |
A dv a n c e I n f o r m a t io n
RX3930
the wireless IC company
Page 3
May 2001
Pin Descriptions
Number
Name
I/O
Description
1
VCC1
POWER
Supply DC bias for RF amplifier
2
RXIN
I
RF amplifier input
3
VSS1
GND
Ground for RF amplifier
4
LNAOUT
O
LNA output
5
VSS2
GND
Ground for 40dB IF limiting amplifier
6
MIXIN
I
RF input to RF Mixer
7
VSS3
GND
Ground for RF Mixer
8
MIXOUT
O
IF output from RF Mixer
9
IFIN
I
IF input (required 10nF DC blocking capacitor)
10
IFIN
I
Same as pin 9 except non-inverting node amplifier input
11
IF1DEC
I/O
DC feedback for 40dB limiting amplifier (required 100nF bypass capacitor)
12
IF1DEC
I/O
See pin 11
13
IF1OUT
O
IF output from the 40 dB limiting amplifier
14
VREFIF
O
DC voltage reference for the IF limiting amplifier (required 0.1
μ
F capacitor)
15
VSS5
GND
Ground for 60dB IF limiting amplifier
16
IF2 IN
I
Inverting input to the 60dB limiting amplifier (required 10nF DC blocking
capacitor)
17
IF2DEC
I/O
DC feedback node for the 60dB limiting amplifier (required 100nF bypass
capacitor)
18
IF2DEC
I/O
See pin 17
19
VCC3
POWER
Supply DC bias to the 60dB IF limiting amplifier
20
MUTE
I
Select FM, FSK, or mute at the FM OUT pin. (to Ground: FSK OUTPUT;
floating: FM OUTPUT; to Vcc: muting)
21
RSSI
O
Proportional DC voltage (0.5V~2.5V) output
22
FMOUT
O
Demodulated output
23
IF2OUT
O
IF output from the 60dB limiting strip
24
QUAD
I
FM demodulator input (not AC coupled)
25
RES
I/O
Supply DC voltage to VCO
26
RES
I/O
See pin 25
27
VCC2
POWER
Supply DC bias to the VCO, prescaler, and PLL
28
VSS4
GND
Ground shared by the VCO, prescaler, and PLL
29
DO
I/O
Output of the charge pump, and input to the VCO
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