GENERAL DESCRIPTION
The ML7022 is a two-channel single-rail CODEC CMOS IC for voice signals ranging from 300 to 3400Hz. This device contains two-channel analog-to-digital (A/D) and digital-to-analog (D/A) converters on a single chip. The ML7022 is designed especially for a single power supply and low power applications and achieves a reduced footprint.

FEATURES
• Single 5 V Power Supply Operation
• Using ∆-Σ ADC and DAC Technique
• Low Power Consumption
    2-Channel Operating Mode: typical: 70 mW max.: 90 mW
    1-Channel Operating Mode: typical: 40 mW max.: 55 mW
    Power Saving Mode: (CPD1 = CPD2 = “0”) typical: 9 mW max.: 12.5 mW
    Power Down Mode: (PDN = “0”) typical: 0.05 mW max.: 0.25 mW
• ITU-T Companding Law - µ-law
• Built-in Dual 3-bit Latches with CMOS Drive Capability
• Serial PCM Interface
• Master Clock: 4.096 MHz
• Transmission Clocks:
    256 to 4096 kbps
• Adjustable Transmit Gain
• Built-in Reference Voltage Supply
• Analog Output can Directly Drive a 600Ω Line Transformer
• Latched Content Echo-back Function
• Package Type:
    30-pin plastic SSOP (SSOP30-P-56-0.65-K) (Product name: ML7022-01MB)