PCM1789-Q1 Texas instruments

PCM1789-Q1

Уточнить цену

PCM1789-Q1

Уточнить цену

СРАВНИТЬ

В СРАВНЕНИИ

Уточнить цену

Описание

The PCM1789-Q1 is a high-performance, single-chip, 24-bit, stereo, audio digital-to-analog converter (DAC) with differential outputs. The two-channel, 24-bit DAC employs an enhanced multi-level, delta-sigma () modulator, and supports 8 kHz to 192 kHz sampling rates and a 16-/20-/24-/32-bit width digital audio input word on the audio interface. The audio interface of PCM1789-Q1 supports a 24-bit, DSP format in addition to I2S, left-justified, and right-justified formats. The PCM1789-Q1 can be controlled through a three-wire, SPI-compatible or two-wire, I2C-compatible serial interface in software, which provides access to all functions including digital attenuation, soft mute, de-emphasis, and so forth. Also, hardware control mode provides two user-programmable functions through two control pins. The PCM1789-Q1 is available in a 24-pin TSSOP package.

Qualified for Automotive Applications
Enhanced Multi-Level Delta-Sigma DAC:
- High Performance: Differential, f_S = 48 kHz
- THD+N: –94 dB
- SNR: 113 dB
- Dynamic Range: 113 dB
- Sampling Rate: 8 kHz to 192 kHz
- System Clock: 128 f_S, 192 f_S,
  256 f_S, 384 f_S, 512 f_S,
  768 f_S, 1152 f_S
- Differential Voltage Output: 8 V_PP
- Analog Low-Pass Filter Included
- 4x/8x Oversampling Digital Filter:
  - Passband Ripple: ±0.0018 dB
  - Stop Band Attenuation: –75 dB
- Zero Flags (16-/20-/24-Bits)
Flexible Audio Interface:
- I/F Format: I²S, Left-/Right-Justified, DSP
- Data Length: 16, 20, 24, 32 Bits
Flexible Mode Control:
- 3-Wire SPI, 2-Wire I²C-Compatible Serial Control Interface,
  or Hardware Control
- Connect Up To 4 Devices on One SPI Bus
Multi Functions via SPI or I²C I/F:
- Audio I/F Format Select: I²S, Left-Justified,
  Right-Justified, DSP
- Digital Attenuation and Soft Mute
- Digital De-Emphasis: 32 kHz, 44.1 kHz, 48 kHz
- Data Polarity Control
- Power-Save Mode
Multi Functions via Hardware Control:
- Audio I/F Format Select: I²S, Left-Justified
- Digital De-Emphasis Filter: 44.1 kHz
Analog Mute by Clock Halt Detection
External Reset Pin
Power Supplies:
- 5 V for Analog and 3.3 V for Digital
Package: TSSOP-24
Operating Temperature Range:
- –40°C to +105°C
APPLICATIONS
- AV Receivers
- Car Audio External Amplifiers
- Car Audio AVN Applications

SPI is a trademark of Motorola, Inc.
I2S, I2C are trademarks of NXP Semiconductors.
All other trademarks are the property of their respective owners.

Number of DAC channels	2
Analog inputs	0
Analog outputs	2
DAC SNR (typ) (dB)	113
Sampling rate (max) (kHz)	192
Control interface	H/W, I2C, SPI
Resolution (Bits)	24
Architecture	Current Segment DAC
Operating temperature range (°C)	-40 to 105
Rating	Automotive