192 KHz Stereo D/A Converter
Description
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ES7134
8-pin, 24-Bit, 192 KHz Stereo D/A Converter for PCM Audio
GENERAL DESCRIPTION The ES7134 is a low cost 8-pin stereo digital to analog converter.
The ES7134 can accept I²S serial audio data format up to 24-bit word length.
The device uses advanced multi-bit ∆-∑ modulation technique to convert data into two channel analog outputs.
The multi-bit ∆-∑ modulator makes the device with very low sensitivity to clock jitter and very low out of band noise.
FEATURES z z z z z 95 dB dynamic range -85 dB THD+N Up to 200 kHz sampling frequency I2S audio data format, 16-24 bits Single power supply 4.
5V to 5.
5V
APPLICATIONS z z z z DVD players Portable audio players Set top boxes Digital TVs
ORDERING INFORMATION ES7134 -40°C ~ +85°C SOIC-8
BLOCK DIAGRAM
SDATA SCLK LRCK
Audio Data Interface
Interpolation Filter
Multi-level Sigma-delta DAC
Output Amp Low Pass Filter
AOUTL
Clock Manager/ Sample Rate Detector
Interpolation Filter
Multi-level Sigma-delta DAC
Output Amp Low Pass Filter
AOUTR
CLKIN
Rev 1.
0
1
March, 2007
Everest Semiconductor Co.
, Ltd.
1.
PIN DESCRIPTIONS
ES7134
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SDATA SCLK LRCK CLKIN
1 2
ES7134
8 7 6 5
AOUTL VDD GND AOUTR
3 4
PIN 1 2 3 4 5 6 7 8
PIN SDATA SCLK LRCK CLKIN AOUTR GND VDD AOUTL
I/O I I I I O I I O
DESCRIPTION Serial audio data input Bit clock input Left and right channel clock input indicating input data sampling rate (Fs) and channel selection System clock input Analog output of right channel Ground Device power supply Analog output of left channel
2.
RECOMMENDED APPLICATION CIRCUIT
+5V 12 3.
3u/ 16V +
+ 0.
1uF U1 Serial Auio Data 1 2 3 4 SDATA SCLK LRCK CLKIN AOUTL VDD GND AOUTR 8 7 6 5 1u/ 16V
560 1 10K 3000pF Left & Right Channel Analog Output 1 10K 3000pF
AIC7134 33pF
Figure 1 Recommended Application Circuit
Rev 1.
0
+
3.
3u/ 16V
560
2
March, 2007
Everest Semiconductor Co.
, Ltd.
3.
APPLICATION DESCRIPTIONS Sampling Rate and Input Clocks
ES7134
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