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参数资料
| 型号： | TA31275FNG |
| 元件分类： | 接收器 |
| 英文描述： | AM/FM, AUDIO SINGLE CHIP RECEIVER, PDSO24 |
| 封装： | 0.300 INCH, 0.65 MM PITCH, PLASTIC, SSOP-24 |
| 文件页数： | 24/25页 |
| 文件大小： | 561K |
| 代理商： | TA31275FNG |
TA31275FN/ TA31275FNG
03-01-23
8
12. Control Terminal for Quick Charge Circuit (CHARGE)
CHARGE (15 pin) is control terminal for quick charge circuit. REF (20 pin) control terminal for quick
charge a given period by time constant of internal resistance and outside capacitance. Enabling the
CHARGE pin requires an external capacitor. In normal operation, connect a capacitor having the same
capacitance as that of the capacitor connected to the REF pin (pin 20).
If the connected external capacitor (C11) is 0.1
F, the quick charge time is 7 ms (typically).
13. Bit Rate Filter for FM
The current FM bit rate filter is used as a tertiary filter.
If the filter is to be used at a rate other than 1200 bps, please change the filter constant.
Quadratic Filter (NRZ)
R10
R9
R8
C20
C19
C18
1200 bps
68 k
68 k
68 k
0.01
F
560 pF
3300 pF
2400 bps
68 k
68 k
68 k
4700 pF
270 pF
1500 pF
4800 bps
68 k
68 k
68 k
2200 pF
150 pF
680 pF
14. Bit Rate Filter for AM
The current AM bit rate filter is used as a quadratic filter.
If the filter is to be used at a rate other than 1200 bps, please change the filter constant.
Quadratic Filter (NRZ)
(the bit rate filter time constant takes into account the internal resistance RSSI (30 k
))
R
R10
C20
C19
1200 bps
36 k
68 k
4700 pF
1500 pF
2400 bps
36 k
68 k
2200 pF
680 pF
4800 bps
36 k
68 k
1000 pF
390 pF
When the filter constants shown below are used, it is not necessary to set the R constant value.
R
R10
C20
C19
1200 bps
30 k
6800 pF
2200 pF
2400 bps
30 k
3300 pF
1500 pF
4800 bps
30 k
1800 pF
820 pF
In addition, the current AM bit rate filter can be used as a tertiary filter.
If the filter is to be used at a rate other than 1200 bps, please change the filter constant.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TA31275FNG(EL) | 功能描述:射频无线杂项 200MHz-450MHz Receiver RoHS:否 制造商:Texas Instruments 工作频率:112 kHz to 205 kHz 电源电压-最大:3.6 V 电源电压-最小:3 V 电源电流:8 mA 最大功率耗散: 工作温度范围:- 40 C to + 110 C 封装 / 箱体:VQFN-48 封装:Reel |
| TA31275FNG(O,EL) | 制造商:Toshiba America Electronic Components 功能描述:IC RECEIVER RFIC 450MHZ 24SSOP |
| TA-316-PT | 制造商:WELCON 功能描述: |
| TA3-1R3K-V-T/R | 制造商:Diptronics Manufacturing Inc 功能描述: |
| TA3-1W2K-V-T/R | 制造商:Diptronics Manufacturing Inc 功能描述: |
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