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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： | 10/12页 |
| 文件大小： | 190K |
| 代理商： | LA72912V |
LA72912V
No.A1409-7/12
Pin Function
Pin No.
Pin name
FM MOD mode(Outside camera)
FM DEMOD mode(Inside Monitor)
Note
1
Emphasis filter
Emphasis filter connection pin
Non connect(Hi-Z)
If you no need, this pin is open.
2
VCC5V
VCC for FM modulation.
VCC for FM demodulation.
3
FM/Video Output
FM Output
(RO=200:1.8Vp-p)
Video Output
(RO=1k: 2Vp-p)
Push-pull output
4
4V Regulator
FM modulate block and ASK bock
supply reference voltage.
FM demodulate block and ASK bock
supply reference voltage.
5
FM/VD input
VD Input.
(Hi: over 2V, Low: under 0.4V)
(VD DET: High)
FM Input.
(Recommend Level: 100 to 620mVp-p)
DEMOD mode: Set
3.3V by internal bias. (34k
/66k)
6
MOD/DEMOD Control
Set over 2V DC voltage.
Set under 0.4V DC voltage.
Outside camera /
Inside monitor setting.
7
TC1(MOD)/
FMAGC monitor
Out control
Set capacitor for TC1
FMAGC monitor out control
GND: Monitor ON / VCC: Monitor OFF
Can do second inside monitor
addition
8
TC2(DEMOD)/
FMAGC monitor
Output
Set capacitor for TC2
FMAGC monitor output
Can do second inside monitor
addition
9
ASK-VCC5V
VCC for ASK
←
10
ASK CAR IN
ASK carrier Input.
(Recommend below 3Vp-p)
←
2.1V by internal bias. (50k
)
11
ASK DATA IN
ASK Data Input.
(Hi: more than 2V, Lo: below 0.4V)
←
12
ASK TX Output
ASK modulated signal Output
←
Push-pull output
13
ASK RX Output
ASK Demodulated Output
←
Open collector output
ASK carrier detect = Lo
14
ASK DET filter
ASK Detector filter
←
15
ASK AGC filter
/AGC OFF
AGC filter for ASK. (When AGC
operate voltage is 0V to 3V, AGC stop
when you add over 4.5V.)
←
16
ASK RX input
ASK Demodulate Input
←
3.3V by internal bias. (34k
/66k)
17
Standby control
FM blocks standby control. (FM block
operate: over 2V, FM block standby:
under 0.4V )
←
18
DOC-OUT
/2nd-Call input
2ND-Call input, 2ND-Call: Low (High:
over 2V, Low: under 0.4V)
DOC output
(When DO-DET, output is Low)
DEMOD mode:
Open collector output.
19
B-GND
Circuit GND
←
20
FM AGC filter
Emphasis monitor output
FM AGC control filter (AGC-ON:0
to
3V DC, AGC-OFF:4.5V
to 5V by
external DC voltage.)
MOD mode: Don’t connect
capacitor.
21
De-emphasis filter
Non connect(Hi-Z)
De-emphasis filter connection pin.
If you don’t need, this pin is open.
22
A-GND
Circuit GND
←
23
De-emphasis output
/V-2V select
DFF for V-diff control
(ON: over 2V, OFF: under 0.4V)
DE-emphasis output
MOD mode;
VD diff. Count select
0V : VD through
2V : VD 1/2 diff
24
Video input
Video signal input.
(from outside CCD camera: 1Vp-p).
Video signal input.
(from de-emphasis block: 0.5Vp-p).
MOD mode: Maximum video input
level is 1.5Vp-p.
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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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