mixed signal CMOS monolithic stereo audio ADC
DESCRIPTION
The CE2632 is a mixed signal CMOS monolithic stereo audio ADC for consumer applications.
The ADC is 128-time...
Description
DESCRIPTION
The CE2632 is a mixed signal CMOS monolithic stereo audio ADC for consumer applications.
The ADC is 128-time oversampled. The sampled data are digital filtered and decimated before sent out. A switchabThe ADC utilizes 4-order Σ∆ architecture. The 1− bit Σ∆ converter offers superior differential linearity, with minimum distortion due to component mismatch, and high tolerance to clock jitter. The internal digital filter has a 20K bandwidth. The analog input is 1 vrms corresponding to digital full scale value. The value greater than full scale will be clipped.
FEATURES
Stereo Audio ADC. - 96dB SNR (A Weighted). - -82 dB THD + N Ratio (A Weighted). - 32K - 96 KHz. Sampling Rates. - 91 dB channel separation.
I2S, Left Justified Digital I/F Formats.
3.3 Volt Power Supply.
Applications
Digital Surround Sound For Home Theatre AV Receiver Car Audio.
FMT NOHPF
CE2632
Control Interface
LIN 77
A/D A/D
DECIMATION FILTER
PCM I/F
XCK DOUT BCK LRCK
CEI Microelectronics Co. Ltd.
1-12
September 5, 2005
Item 1 2 3 4 5 6 7 8 9
CE2632 Performance
ADC PERFORMANCE SPECIFICATIONS
Maximum Input Level 0 dB Audio Input Level Audio Bandwidth 20Hz - 20 KHz SNR (A-weight) THD + NOISE (A-weight, 0 dB input) Dynamic Range Channel Separation Nonlinear Distortion Channel Gain Error
Spec. 4 Vpp 1 Vrms +/- 0.5 dB >96 dB < -82 dB 89 dB < -90 dB < 0.5 dB < 0.5 dB
CE2632
2-12 September 5, 2005
PIN ASSIGNMENT
CE2632
DVDD SDO BCK FMT CAP VCM RIN
1 2 3 4 5 6 7
CE2632
14 ...
Similar Datasheet