Philips TDA9605H

1999 Apr 14 35

Philips Semiconductors Product speciﬁcation

Audio processor with head ampliﬁer for VHS hi-ﬁ TDA9605H

12 RECORD MODE CHARACTERISTICS

VCC = 12 V; Tamb=25°C; tuner audio input level −8 dBV at f = 1 kHz; auto-calibrated; measured in typical application

circuit of Fig.14; unless otherwise speciﬁed.

Notes

1. B = 20 Hz to 20 kHz, unweighted.

2. Amplitude of 400 kHz intermodulation product fc(R) and fc(L) compared to amplitude of recording current fc(R) +f

c(L).

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

Noise reduction (test 25b)

THD total harmonic distortion tuner input signal at

normal level −8 dBV −0.1 0.3 %

high level +8 dBV −0.2 1.0 %

αcb channel balance −1 0 +1 dB

αlin linearity tuner input signal at

low level −68 to −8 dBV −32 −30.5 −29 dB

high level −8 to +8 dBV 7.5 8 8.5 dB

αnnoise level with respect to

signal level tuner input signal level

from −∞ to −8 dBV; note1

−−46 −41 dB

tatt attack time in accordance with VHS speciﬁcation −5−ms

trec recovery time in accordance with VHS speciﬁcation −70 −ms

αres(f1) frequency response 300 Hz tuner input frequency from

300 to 1000 Hz

−0.7 −0.2 +0.3 dB

αres(f2) frequency response 10 kHz tuner input frequency from

10 to 1 kHz 3.1 3.9 4.7 dB

αres(lpf1) audio low-pass ﬁlter

response 20 kHz tuner input frequency from

20 to 1 kHz; test 26b

−0.5 −0.1 +0.5 dB

αres(lpf2) audio low-pass ﬁlter

response 60 kHz tuner input frequency from

60 to 1 kHz; test 26b

−−24 −12 dB

FM modulator

THD total harmonic distortion ∆fFM = 50 kHz; test 25a and 26a −0.1 0.2 %

∆fFM(max) maximum FM deviation of

clipper test 25a and 26a 140 150 160 kHz

fc(acc) carrier frequency accuracy auto-calibration −5 0 +5 kHz

∆fccarrier frequency difference fc(R) −fc(L) for NTSC auto-calibration 399.2 401.2 403.2 kHz

fc(shift) carrier frequency shift NTSC/PAL system switching 97 100 103 kHz

TC temperature coefﬁcient −±50 −ppm/K

Noise reduction and FM modulator

∆fFM FM deviation 44.5 50 56.1 kHz

Record output on pin RECOUT

Io(acc) output current accuracy left and right carrier 1stharmonic −1.5 0 +1.5 dB

αf(acc) carrier mix ratio accuracy left compared to right carrier −1 0 +1 dB

αIM2 IM2 product note 2 −−66 −dB