GENERAL DESCRIPTION
The TDA9610H is a dual audio FM processing IC for VHS hi-fi audio, digitally controlled via the I2C-bus. The FM (de)modulator and peak noise reduction functions are highly integrated, resulting in few external components and adjustments.

FEATURES
• Integrated High Frequency (HF) low-pass filter (LPF) and summator
• Low-noise Phase-Locked Loop (PLL) FM (de)modulator
• Low-distortion sample-and-hold switching noise suppressor
• Integrated audio low-pass filter
• 4 stereo input selectors (left [L] and right [R] channel):
    – EXT1L and EXT1R
    – EXT2L and EXT2R
    – CINL and CINR
    – TUNL and TUNR
• Additional mono inputs for linear audio: EXN1 and EXN2
• DC output for VU meter drive
• Direct headphone drive
• Linear input/linear output
• Modulator output with overload Automatic Gain Control (AGC)
• RAF (Record Audio FM) for head amplifier control
• Power-down mode facility
• I2C-bus control of:
    – line input volume
    – headphone output volume
    – input/output selector
    – PAL/NTSC mode
• E-E performance (record + playback):
    – Total Harmonic Distortion (THD): 0.05% (−8 dBV, 1 kHz)
    – linearity error: 0.1 dB (−88 dBV)
    – noise: −93 dBV (20 Hz to 20 kHz).