GENERAL DESCRIPTION

The ML7033 is a 2-channel PCM CODEC CMOS IC designed for Central Office (CO) and Customer Premise Equipment (CPE) environments. The ML7033 device contains 2-channel analog-to-digital (A/D) and digital-to-analog (D/A) converters with multiplexed PCM input and output. The ML7033 is designed for single-rail, low power applications. The high integration of the ML7033 reduces the number of external components and overall board size. The ML7033 is best suited for line card applications and provides an easy interface to subscriber line interface circuits (SLIC’s), in particular the Intersil RSLICTM series.

FEATURES

• Seamlessly interfaces with Intersil RSLICTM series devices

• Single 5 volt power supply (4.75 V to 5.25 V)

• ∆-Σ ADC and DAC

• PCM format: µ-law/A-law (ITU-T G.711 compliant), 14-bit linear (2’s complement)

• Optional wideband filter for V.90 data modem applications

• Low power consumption

- 2-channel operating mode: 115 mW (typical) 180 mW (max)

- 1-channel operating mode: 80 mW (typical) 115 mW (max)

- Power-down mode: 0.1 mW (typical) 0.25 mW (max); PDN pin = logic “0”

• Power-on reset

• Dual programmable tone generators (300 Hz to 3400 Hz; 10 Hz intervals; 0.1 dB intervals)

- Call progress tone, DTMF tone

• Ringing tone generator (15 Hz to 50 Hz; 1Hz intervals; 0.1 dB intervals)

• Pulse metering tone generator (12 kHz, 16 kHz; gain level selectable)

• Call ID tone generator (ITU-T V.23, Bell 202)

• Analog and digital loop back test modes

• Time-slot assignment

• Serial MCU interface

• Master clock: 2.048 MHz/4.096 MHz selectable

• Serial PCM transmission data rate: 256 kbps to 4096 kbps

• Adjustable transmit/receive gain (1 dB intervals)

• Built-in reference voltage generator

• Differential or single-ended analog output selectable

• Package: 64-pin plastic QFP (QFP64-P-1414-0.80-BK) (Ordering Part number: ML7033GA)