參數(shù)資料
型號(hào): PCM1804DBR
英文描述: FULL DIFFERENTIAL ANALOG INPUT 24-BIT, 192-kHz STEREO A/D CONVERTER
中文描述: 全差分模擬輸入24位,192千赫立體聲A / D轉(zhuǎn)換器
文件頁(yè)數(shù): 25/31頁(yè)
文件大?。?/td> 470K
代理商: PCM1804DBR
PCM1804
SLES022A
DECEMBER 2001
25
www.ti.com
PRINCIPLES OF OPERATION
overflow flag for PCM
The PCM1804 has two overflow flag pins, OVFR (pin 20) and OVFL (pin 21). The pins go to high as soon as
the analog input goes across the full-scale range. The high level is held for 1.016 s at maximum, and returns
to low if the analog input does not go across the full-scale range for the period.
SYNCHRONOUS
ASYNCHRONOUS
SYNCHRONOUS
Synchronization Lost
Resynchronization
Normal Data
Undefined
Data
Zero Data
Converted Data (B)
1 / fS
90 / fS
State of
Synchronization
Data (A)
NOTES: A. Applies only for slave mode, the loss of synchronization never occurs in master mode.
B. The HPF transient response appears initially.
Figure 41. ADC Digital Output for Lost of Synchronization and Resynchronization
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