GENERAL DESCRIPTION
The ML7048 is a three-channel single rail CMOS CODEC LSI. This device contains filters for A-to-D and D-to-A conversions of voice signals ranging 300 to 3400 Hz.
The ML7048 is designed for a single power supply and low power applications and contains three-channel A-to-D and D-to-A converters on a single chip, and achieves a reduced footprint and external component parts. The ML7048 is best suited for ISDN terminal and digital telephone terminal applications.

FEATURES
• Single 5 V Power Supply Operation
• Using ∆-Σ ADC and DAC Technique
• Low Power Consumption
    3-Channel Operating Mode: typical: 140 mW max.:174 mW
    Power Saving Mode: (PDN = “1”, PDN1 to 3 = “0”) typical: 15 mW max.: 26 mW
    Power Down Mode: (PDN = “0”) typical: 0.05 mW max.: 0.3 mW
• ITU-T Companding Law: µ-law
• PCM Interface:
    3-Channel Independent or 3-Channel Continuous Serial Interface Pin Selectable
• Master Clock:
    12.288 MHz or 15.360 MHz Pin Selectable
• Transmission Clocks:
    64, 128, 256, 512, 1024, 2048 kHz
    96, 192, 384, 768, 1536 kHz
• Adjustable Transmit Gain for Each Channel
• Built-in Reference Voltage Supply
• Differential Analog Output can Directly Drive a 600Ω Transformer.
• Package:
    44-pin Plastic QFP (QFP44-P-910-0.80-2K) (Product name: ML7048-01GA)