Surround Processor IC - Sanyo Semicon Device
Description
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Ordering number : ENN*8264
Bi-CMOS LSI
LV1117
Overview
Surround Processor IC for Electronic Volume Control
The LV1117 is a sound processor IC developed for use in TV sets.
It incorporates surround processing function (AViSS™), pseudo stereo function, auto gain control, and the major functional blocks of an electronic volume control IC.
Functions
• Input function SW (4-channel stereo inputs [L, R] ) • LINE OUT (through output) • Input gain control (-6dB, -4dB, 0dB, 4dB, 6dB: 5 positions) • AViSS™ (ON/OFF/6-stage level control) • Tone control (BASS: ±20dB, TREBLE: ±18dB [in 2dB steps]) • Master volume control (0dB to -14dB: 1dB steps/-14dB to -80dB: 2dB steps/-∞ = -82dB) • Balance control • THROUGH mode/MUTE mode • Pseudo stereo function (ON/OFF/MONO control) • L+R output with LPF (MUTE + 7-stage level control: 8 positions) • I2C bus control • Parallel output port (4 pin) * Initial output gain of L+R can be controlled by the resistance value of external resistor.
Specifications
Maximum Ratings at Ta=25°C
Parameter Maximum supply voltage Allowable power dissipation Operating temperature Storage temperature Symbol VCC max Pd max Topr Tstg Ta ≤ 70°C Conditions Ratings 10.
5 700 -25 to +70 -40 to +125 Unit V mW °C °C
31005 YY PC No.
8264-1/3
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LV1117
Operating Conditions at Ta=25°C
Parameter Recommended supply voltage Operating supply voltage Control data “H” level voltage “L” level voltage Pulse width Hold time Operating frequency VIH VIL tφw thold fopg 2.
0 to 5.
5 0.
0 to 1.
0 1.
0 1.
0 500 V V µs µs kHz Symbol VCC VCC opg Conditions Ratings 9.
0 5.
0 to 10.
0 Unit V V
Electrical Characteristics at Ta=25°C, VCC=9.
0 V, fin=1kHz, VIN=300mVrms=0dB, RL=10kΩ (Input=L/Rch-A, Output=L/R-VROUT)
Parameter Quiescent current Symbol ICCO Conditions min Ratings typ 48 max mA Unit
[Total through (Total through mode, Volume control: 0dB) ] Voltage gain Maximum output voltage Total harmonic distortion O...
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