TDA9605H/N1 查看數據表（PDF） - Philips Electronics

零件编号

产品描述 (功能)

生产厂家

TDA9605H/N1

Audio processor with head amplifier for VHS hi-fi

Philips Electronics 

Philips Semiconductors

Audio processor with head amplifier for VHS hi-fi

Product specification

TDA9605H

handbook, h5alfpage

ENVOUT

output

voltage

(V) 4

3

MGR846

2

1

0

10−1

1

10

102

103

left channel carrier amplitude (RMS value) (mV)

handbook, h5alfpage

ENVOUT

output

voltage

(V)

4

3

MGR847

2

1

0

−40

−30

−20

−10

0

10

LINEL and LINER output level (dBV)

1.3 MHz (NTSC) or 1.4 MHz (PAL) at internal node between head

amplifier and HF AGC.

Fig.11 HF envelope output (playback carrier level).

Bit LOH = 0.

Fig.12 AF envelope output (audio peak level).

handbook, haRlfpFage

converter

output

(dBV) −3

MGR848

−3 line output (dBV)

Fig.13 AGC output of RF converter.

6.8 RF converter output

An AGC function is incorporated to avoid overmodulation

in the RF converter connected to pin RFCOUT. The AGC

limits the maximum signal level on the RF converter output

to −3 dBV (see Fig.13).

The RF converter output can be muted by setting

bit RFCM = 1. When using this RF converter mute, the

AGC control is reset by discharging the capacitor

connected to pin RFACG.

1999 Apr 14

16

Share Link: