PCM1808-Q1 Texas instruments

PCM1808-Q1

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PCM1808-Q1

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Описание

The PCM1808-Q1 is high-performance, low-cost, single-chip, stereo analog-to-digital converter with single-ended analog voltage input. The PCM1808-Q1 uses a delta-sigma modulator with 64-times oversampling and includes a digital decimation filter and high-pass filter that removes the dc component of the input signal. For various applications, the PCM1808-Q1 supports master and slave mode and two data formats in serial audio interface. The PCM1808-Q1 supports the power-down and reset function by means of halting the system clock. The PCM1808-Q1 is suitable for wide variety of cost-sensitive consumer applications where good performance and operation with a 5-V analog supply and 3.3-V digital supply is required. The PCM1808-Q1 is fabricated using a highly advanced CMOS process and is available in a small, 14-pin TSSOP package.

Qualified for Automotive Applications
24-Bit Delta-Sigma Stereo A/D Converter
Single-Ended Voltage Input: 3 Vp-p
High Performance:
- THD + N: –93 dB (Typical)
- SNR: 99 dB (Typical)
- Dynamic Range: 99 dB (Typical)
Oversampling Decimation Filter:
- Oversampling Frequency: ×64
- Pass-Band Ripple: ±0.05 dB
- Stop-Band Attenuation: –65 dB
- On-Chip High-Pass Filter: 0.91 Hz (48 kHz)
Flexible PCM Audio Interface
- Master/Slave Mode Selectable
- Data Formats: 24-Bit I²S, 24-Bit Left-Justified
Power Down and Reset by Halting System Clock
Analog Antialias LPF Included
Sampling Rate: 8 kHz–96 kHz
System Clock: 256 f_S, 384 f_S, 512 f_S
Dual Power Supplies:
- 5-V for Analog
- 3.3-V for Digital
Package: 14-Pin TSSOP

Number of ADC channels	2
Analog inputs	2
Digital audio interface	I2S, L
Control interface	H/W
Sampling rate (max) (kHz)	96
ADC SNR (typ) (dB)	99
Rating	Automotive
Analog outputs	0
Operating temperature range (°C)	-40 to 125