ML7204-001 Datasheet | OKI Electric

DESCRIPTION The ML7204-001 is a speech CODEC for Vo IP. As a speech CODEC, this LSI allows selection of G.729.A/G711 and supports the PLC (Packet Loss Concealment) function. With an echo canceler that handles 32 ms-delay and FSK detection/generation, DTMF detection/generation, and tone detection/generation functions, the ML7204-001 is the most suitable LSI for adding the Vo IP function to TAs and routers. FEATURES - Power supply voltage Digital power supply voltage (DVDD0, 1, 2): 3.0 to 3.6 V Analog power supply voltage (AVDD): 3.0 to 3.6 V - Speech CODEC: G.729.A (8 kbps)/G.711 (64 kbps) µ-law and A-law (supports individual setting for transmission and reception) Supports ITU-T G.711 Appendix 1 pliant PLC (Packet Loss Concealment) function Supports the 2-channel processing function (for 3-way munication) - Built-in FIFO buffer (640 bytes) for transmission/reception data transfer Allows selection of Frame/DMA (slave) interface - Echo canceler for handling 32 ms delay - DTMF detection - DTMF generation (the tone generation function enables generation of DTMF signals) - Tone detection: 2 types (1650 Hz and 2100 Hz: Detection frequency can be changed) - Tone generation: 2 types - FSK detection - FSK generation - Built-in 16-bit timer: 1 channel - Dial pulse detection function (secondary function of general-purpose I/O ports) - Dial pulse transmission function (secondary function of general-purpose I/O ports) - General-purpose I/O ports 64-pin package: Equipped with 7 ports (with some of them having secondary function allocation) 100-pin package: Equipped with 21 ports (with some of them having secondary function allocation) - Two types of built-in linear PCM CODEC (CODEC_A and CODEC_B) - Analog interface CODEC_A side: Incorporates one type each of input amplifier and output amplifier (10 kΩ driving) CODEC_B side: Incorporates one type each of input amplifier and output amplifier (10 kΩ driving) - PCM interface coding format: Allows selection of 16-bit linear/G.711 (64...