A/D converter capable of accepting direct IF integrated digital filtering and requires only a single 8 MHz channel SAW filter for 6, 7 and 8 MHz COFDM

signal reception, plus a 7-bit ADC for RF level indication.

1.3. IC506 (VHiMM3151XQ-1Q)

This video switch controlled by the I2C bus is used to switch between component signal, S-video signal and composite signal.

The signal group input from each input terminal and the tuner is selected by the control signal of the I2C bus.

The selected output signal is fed to IC3301 (IXC010WJ) of the video processor circuit.

1.4. IC1402 (VHiR2S15502-1Y)

R2S15502SP is a Sound Multiplex Decoder IC.

It supports the NICAM and A2 system.

It incorporates the high-speed ADC, and all processings are digitally implemented including demodulation.

1.5. IC1403 (VHiTAS3108D-1Y)

This IC is an audio processor for the digital TV and a 1-chip IC equipping the DSP only for audio with the AD/DA converter.

The 48bit DSP core has a processing capability of 135MHz and 675MIPS and realizes the high-quality audio processing.

1.6. IC1404 (VHiAK4683EQ-1Q)

1-chip 24bit CODEC (COmpression/DECompression) with a built-in 2ch ADC and 4ch ADC. The ADC has the enhanced dual bit architecture to real-

ize the wide dynamic range. The DAC adopts the newly-developed advanced multi-bit architecture to achieve wider dynamic range and low outband

noise. It also incorporates the digital audio receiver (DIR) and transmitter (DIT) compatible with 192kHz and 24bit. The DIR automatically detects

Non-PCM data stream such as Dolby Digital (AC-3). For the digital audio output, ADC output or external digital input can be selected. The control is

set through the serial µP I/F.

1.7. IC1301 (VHiYDA147SZ-1Y)

High-efficiency digital audio power amplifier IC with maximum power output of 20W (Vddp=14V, RL=4Ω) x 2ch.

It incorporates the "DRC (Dynamic range compression)" function. Since the volume is increased at low volume level and is decreased at high volume

level, it is possible to prevent sudden volume change. It is also provided with the "power limiter" which can set the output limit.

1.8. IC402 (VHiBD9305AF-1Y)

1ch step-down switching regulator control

It supplies a power supply voltage of +5.0V.

1.9. IC9601/9603/9604/9606 (VHiTPS40055-1Y)

DC/DC converter IC. It supplies power supply voltages of 3.3/1.8/1.3/1.2V.

This IC has various user programming functions such as operation frequency, soft-start time, voltage feed forward, high-side current limit, and exter-

nal loop compensation. It is also provided with the stabilized 10V gate drive power supply for the boot strap charging circuit of the high-side N channel

MOSFET and the driver for the low-side synchronous rectification MOSFET.

1.10. IC9602 (VHiMP2367DN-1Y)

Monolithic step down regulator.

It supplies a power supply voltage of D5.0V.

•

Programmable Soft-Start.

•

Fixed 340kHz frequency.

•

Cycle-by-Cycle over current protection.

•

Input Under Voltage Lockout.