TDA3845T

更新时间： 2024-02-26 23:15:26

品牌	Logo	应用领域
恩智浦 - NXP		商用集成电路光电二极管
页数	文件大小	规格书
18页	137K
描述
Quasi split-sound circuit and AM demodulator

阅读下载

获取价格

如果您发现信息不准确，欢迎纠错

TDA3845T 技术参数

Philips Semiconductors

Objective speciﬁcation

Quasi split-sound circuit and AM

demodulator

TDA3845; TDA3845T

8. For all S/N measurements the used vision IF modulator must conform to the following:

Incidental phase modulation for black-to-white jump should be less than 0.5 degrees. Intercarrier performance,

measured with the television demodulator AMF2 (intercarrier mode weighted S/N ratio) better than 60 dB for 6 kHz

sinewave black-to-white video modulation. Weighted S/N ratio of the demodulated intercarrier signals in accordance

with CCIR 468-3, measured with de-emphasis of 50 µs.

The indicated (S + W)/W ratio X/Y concerns the sound channels 1 and 2 that means demodulated intercarrier signals

of 5.5 and 5.74 MHz respectively.

9. Sound carrier frequency in the range of 30 to 40 MHz modulated with f = 1 kHz and a modulation depth of 80%.

IF input signal (sound carrier) V_1-16= 10 mV (RMS).

10. The capacitor at pin 4 can be omitted, however, the (S + W)/W figure for the AM sound (standard L) will be up to

8 dB worse in the IF voltage range 1 mV to 100 mV.

11. When the supply at V_P2= 12 V the performance will be comparable with the performance when V_P1= 5 to 8 V.

The power supply pin that is not in use should be disconnected.

12. The maximum value given as minimum 120 kHz and typical 700 kHz.

13. Voltage ripple < 200 mV (p-p) at 70 Hz.

January 1993

1...6 7 8910 11 12...18

下载PDF

型号	品牌	描述	获取价格	数据表
TDA3853T	NXP	TV IF amplifier and demodulator with TV-identification	获取价格
TDA3853T-T	NXP	暂无描述	获取价格
TDA3856	NXP	Quasi-split sound processor for all standards	获取价格
TDA3856T	NXP	Quasi-split sound processor for all standards	获取价格
TDA3857	NXP	Quasi-split sound processor with two FM demodulators	获取价格
TDA3858	NXP	Quasi-split sound processor for all standards	获取价格