TP3057N/NOPB - 

制造商：

TEXAS INSTRUMENTS TEXAS INSTRUMENTS

制造商产品编号：

TP3057N/NOPB

仓库库存编号：

1564789

技术数据表：

(EN)

The TP3057N/NOPB is an enhanced serial interface CODEC/Filter Combo consists of μ-law and A-law monolithic PCM CODEC/filters utilizing the A/D and D/A conversion architecture and a serial PCM interface. It is fabricated using National's advanced double-poly CMOS process (microCMOS). The encode portion of each device consists of an input gain adjust amplifier, an active RC pre-filter which eliminates very high frequency noise prior to entering a switched-capacitor band-pass filter that rejects signals below 200 and above 3400Hz. Also included are auto-zero circuitry and a companding coder which samples the filtered signal and encodes it in the companded μ-law or A-law PCM format. The decode portion of each device consists of an expanding decoder, which reconstructs the analog signal from the commanded μ-law or A-law code, a low-pass filter which corrects for the sin x/x response of the decoder output and rejects signals above 3400Hz.

• Transmit high-pass and low-pass filtering
• Receive low-pass filter with sin x/x correction
• Active RC noise filters
• μ-law or A-law Compatible coder and decoder
• Internal precision voltage reference
• Serial I/O interface
• Internal auto-zero circuitry
• Designed for D3/D4 and CCITT applications
• 50mW Typically Low operating power
• 3mW Typically power-down standby mode Automatic power-down

• TTL/CMOS compatible digital interfaces
• Maximizes line interface card circuit density
• Green product and no Sb/Br

参考价格及参考库存