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参数资料
| 型号： | LA72912V |
| 元件分类： | 消费家电 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO24 |
| 封装： | 0.275 INCH, SSOP-24 |
| 文件页数： | 2/12页 |
| 文件大小： | 190K |
| 代理商： | LA72912V |
LA72912V
No.A1409-10/12
Continued from preceding page.
Pin No.
Pin Name
Description
Equivalent circuit
15
ASK AGC filter
/AGC OFF
AGC filter pin for ASK.
Please connect pull-up resistance to this pin, and do
more than 4.5V at voltage of this pin.
15
10k
500
60
A
C1
100k
10k
AGC-DET
16
ASK RX input
ASK input pin.
Please connect with capacitor, 3.3V by internal biased.
16
300
80
A
C1
66k
34k
200
ASK signal
17
Standby control
Standby control pin.
FM block standby: under 0.4V DC voltage. (0 to 0.4V)
FM block operate: over 2V DC voltage. (2 to 5V)
17
1k
30
A
18
DOC-OUT
/2nd-Call input
DEMOD mode: Drop-out output pin.
This pin is open collector output, so please connect pull
up resistor.
MOD mode: 2ND-CALL input.
2ND-CALL input: under 0.4V DC voltage. (0 to 0.4V)
Normal: over 2V DC voltage. (2 to 5V)
18
1k
30
A
300
19
B-GND
Circuit GND.
20
FM AGC filter
MOD mode: Emphasis monitor pin.
DEMOD mode: FM AGC filter pin.
If FM AGC no need ( = AGC Off),
Please set pin 12 voltage over 4.5V DC voltage. (4.5 to
5V)
20
10k
500
60
A
C1
100k
10k
AGC-DET
EMP
21
De-emphasis filter
DEMOD mode: De-emphasis filter pin.
De-emphasis time constant must be matching at
emphasis time constant.
(If you don’t need the emphasis, this pin is open.)
4.7k
21
R1
C1
300
A
2.5k
SIG
22
A-GND
Circuit GND.
Continued on next page.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LA72912VL-TLM-H | 功能描述:调节器/解调器 RoHS:否 制造商:Texas Instruments 封装 / 箱体:PVQFN-N24 封装:Reel |
| LA72912V-MPB-H | 功能描述:调节器/解调器 RoHS:否 制造商:Texas Instruments 封装 / 箱体:PVQFN-N24 封装:Reel |
| LA72912V-TLM-H | 功能描述:调节器/解调器 RoHS:否 制造商:Texas Instruments 封装 / 箱体:PVQFN-N24 封装:Reel |
| LA72914V | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Monolithic Linear IC FM Modulator and Demodulator IC |
| LA72914VL-TLM-H | 功能描述:调节器/解调器 RoHS:否 制造商:Texas Instruments 封装 / 箱体:PVQFN-N24 封装:Reel |
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