参数资料
型号: 73M1903-IGV
厂商: TERIDIAN SEMICONDUCTOR CORP
元件分类: 消费家电
英文描述: SPECIALTY CONSUMER CIRCUIT, PQFP32
封装: TQFP-32
文件页数: 4/45页
文件大小: 449K
代理商: 73M1903-IGV
73M1903
Modem Analog Front End
DATA SHEET
ge: 12 of 45
2005 TERIDIAN Semiconductor Corporation
Rev 1.4
An on-chip band gap voltage is used to provide an internal voltage reference and bias currents for the
analog receive and transmit channels. The reference derived from the bandgap, nominally 1.25 Volts, is
multiplied to 1.36Volts and output at the VREF pin. Several voltage references, nominally 1.25 Volts, are
used in the analog circuits. The band gap and reference circuits are disabled after a chip reset since the
ENFE bit is reset to a default state of zero. When ENFE=0, the band gap voltage and the analog bias
currents are disabled. In this case all of the analog circuits are powered down and draw less than 5 A of
current.
A clock generator (CKGN) is used to create all of the non-overlapping phase clocks needed for the time
sampled switched-capacitor circuits, ASDM, DAC1, and TLPF.
The CKGN input is 2 times the
analog/digital interface sample rate or 3.072MHz clock for Fs=8kHz.
Figure 4 -Analog block diagram
相关PDF资料
PDF描述
73M1903-IM SPECIALTY CONSUMER CIRCUIT, QCC32
73M1903-IGV/F SPECIALTY CONSUMER CIRCUIT, PQFP32
73M1903-IGV SPECIALTY CONSUMER CIRCUIT, PQFP32
73M1903-IM SPECIALTY CONSUMER CIRCUIT, QCC32
73M1903-IM/F SPECIALTY CONSUMER CIRCUIT, PQCC32
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