PCM1850APJT Electronic IC Chips 24-BIT , 96-kHz STEREO A/D CONVERTER
electronic integrated circuit
,linear integrated circuits
PCM1850A
PCM1851A
24-BIT, 96-kHz STEREO A/D CONVERTER WITH 6 × 2-CHANNEL MUX AND PGAE
FEATURES
• Multiplexer and Programmable-Gain Amplifier (PGA)
— 6×2-Channel Single-Ended Inputs
— Multiplexed Output
— Maximum Input Level: 2.4 V rms
— Input Resistance: 50 kΩ, Minimum
— PGA Gain: 11-dB to –11-dB Range, 0.5 dB/Step
• 24-Bit Delta-Sigma Stereo A/D Converter
• Antialiasing Filter Included
• 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)
• High Performance
— THD+N: 0.0023% (Typically)
— SNR: 101 dB (Typically)
— Dynamic Range: 102 dB (Typically)
• PCM Audio Interface
— Master/Slave Mode Selectable
— Data Formats: 24-Bit Left-Justified, 24-Bit I2S, 16-, 24-Bit Right-Justified
• Mode Control by Serial Interface:
— With SPI Control (PCM1850A)
— With I2C Control (PCM1851A)
• Sampling Rate: 16–96 kHz
• System Clock: 256 f s, 384 f s, 512 f s, 768 f s
• Dual Power Supplies: 5 V for Analog, 3.3 V for Digital
• Package: 32-Pin TQFP
APPLICATIONS
• DVD/HDD/DVD+HDD Recorder
• AV Amplifier Receiver
• CD Recorder
• MD Recorder
• Multitrack Recorder
• Electric Musical Instrument
DESCRIPTION
The PCM1850A/1851A is a high-performance, low-cost, single-chip stereo analog-to-digital converter with a single-ended analog front end that consists of a 6-stereo-input multiplexer and wide-range PGA. The PCM1850A/1851A includes a delta-sigma modulator with 64-times oversampling, a digital decimation filter and a low-cut filter that removes the dc component of the input signal. For various applications, the PCM1850A/1851A supports two modes (master and slave) and four data formats through a serial control interface, SPI for the PCM1850A and I 2C for the PCM1851A.
The PCM1850A/1851A is suitable for a wide variety of cost-sensitive DVD/CD/MD recorder and receiver applications where good performance and operation from a 5-V analog supply and 3.3-V digital supply is required. The PCM1850A/1851A is fabricated using a highly advanced CMOS process and is available in a small 32-pin TQFP package.
BLOCK DIAGRAM
PIN ASSIGNMENTS
ABSOLUTE MAXIMUM RATINGS(1)
over operating free-air temperature range (unless otherwise noted)
| VALUE | UNIT | ||
|---|---|---|---|
| VCC | Supply voltage | –0.3 to 6.5 | V |
| VDD | –0.3 to 4 | V | |
| Ground voltage differences: AGND, DGND | ±0.1 | V | |
| Digital input voltage: LRCK, BCK, DOUT, OVER | –0.3 to (VDD + 0.3) < 4 | V | |
|
Digital input voltage: RST, SCKI, MS (ADR)(2), MC (SCL)(2), MD (SDA)(2), TEST0, TEST1 |
–0.3 to 6.5 | V | |
| Analog input voltage: VINL1–6, VINR1–6 | –3 to (VCC + 3) < 9 | V | |
| Analog input voltage: MOUTL, MOUTR, VREF1, VREF2, VREFS | –0.3 to (VCC + 0.3) < 6.5 | V | |
| Input current (any pins except supplies) | ±10 | mA | |
| Ambient temperature under bias | –40 to 125 | °C | |
| Storage temperature | –55 to 150 | °C | |
| Junction temperature | 150 | °C | |
| Lead temperature (soldering) | 260°C, 5 s | ||
| Package temperature (IR reflow, peak) | 260 | °C | |
(1) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) PCM1850A (PCM1851A)
Stock Offer (Hot Sell)
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