PS9604

Features:

· Sampling Frequency: 32kHz to 192kHz
·8X Oversampling at 96kHz
· 4X Oversampling at 192kHz
· Input Audio Data Word: 20-, 24-Bit
·130 dB Dynamic Range
· 120 dB SNR (typical)
· Variable Modulation Index: 0.5 to 0.875
· PWM Switching Frequency: 256~384kHz
· Variable PWM Mapping Method: Both Class
    AD, BD amplifications are supported
·  Automatic Sample Rate Detection
·System Clock:
   2048fs at 48kHz, 1024fs at 96kHz,
   512fs at 192kHz
·Single 3.3 V Power Supply
·28-Lead SOIC Package


Pinout




Specifications

Parameter	Min	Max	Units
Power Supply Voltage (VDD to VSS)	VSS 0.3	4.0	V
Input Current, (Any pin except Supply)	-	±10	mA
Output Current (/Pin)	-	±30	mA
Input Voltage (Any pin except 5V tolerant)	VSS 0.3	VDD + 0.5	V
Input Voltage (5V tolerant Input)	VSS 0.3	+7.5	V
Storage Temperature	-65	+150

Stresses greater than those listed under Absolute Maximum Ratings may cause permanent damage to the  device.
This is a stress rating only; functional operation of the device at these or any other conditions above  those
indicated in the operational section of this specification is not implied. Exposure to absolute maximum  rating
conditions for extended periods may affect device reliability.


Description

The PS9604 is a high performance, stereo, 24-bit, 192kHz PCM-to-PWM converter IC.

The PS9604 uses a state-of-the-art digital signalprocessing algorithm to convert input PCM signal to PWM format without sacrificing the quality of audio signal.

The PS9604 can be used with various 8X oversampling digital filters, for example, DF1704, SM5847, and PMD200. It can be set up to use different modulation indices and PWM mapping methods.

The PS9604's excellent SNR and ultra-low distortion makes it suitable for a size-sensitive consumer power amplifier application where high performance is required, such as high-quality AV receiver, digital TV, and hi-fi amplifiers. A high-end quality full-digital amplifier can be built using the PS9604, with minimal cost.