參數(shù)資料
型號: TDA1315H
廠商: NXP SEMICONDUCTORS
元件分類: 消費家電
英文描述: Digital audio input/output circuit DAIO
中文描述: SPECIALTY CONSUMER CIRCUIT, PQFP44
文件頁數(shù): 29/36頁
文件大小: 411K
代理商: TDA1315H
1995 Jul 17
29
Philips Semiconductors
Product specification
Digital audio input/output circuit (DAIO)
TDA1315H
Stand alone application (receive only)
A very simple implementation of the stand-alone
application is illustrated in Fig.13. In simple terms, it is an
IEC-to-analog converter. The IEC signal is input via a
shielded cable and enters the TDA1315H via its
high-sensitivity input. The audio output is supplied to a
DAC via the enabled I
2
S-bus Port, the DEEM output can
be used to switch a de-emphasis network in and out of the
signal path. The system clock frequency can be selected
and is available should any digital filters in the DAC block
require such a clock. The sample frequency of the
received signal together with any out-of-lock condition of
the phase-locked loop and the presence of a professional
mode IEC signal can be displayed with LEDs.
Fig.13 Simple stand-alone application.
When in a system both IECIN1 and IECIN0 inputs are used, the signal that is applied to the IECIN0 input must be kept away from the IECIN1 input on
the printed-circuit board. Steep slopes of the IECIN0 input can be seen by the sensitive adjacent IECIN1 input. An extra capacitance parallel to the 75
resistor, close to the TDA1315H, can help reduce the crosstalk if required. A suitable value is 180 pF.
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