參數(shù)資料
型號(hào)： SAA3500H
廠商： NXP SEMICONDUCTORS
元件分類： 消費(fèi)家電
英文描述： Digital audio broadcast channel decoder
中文描述： SPECIALTY CONSUMER CIRCUIT, PQFP100
封裝： 14 X 20 MM, 2.70 MM HEIGHT, PLASTIC, MO-112, SOT-317-1, QFP-100
文件頁數(shù)： 10/32頁
文件大?。?/td> 156K
代理商： SAA3500H
2000 Jun 14
10
Philips Semiconductors
Preliminary specification
Digital audio broadcast channel decoder
SAA3500H
A[17:0]
D[7:0]
RD
WR
Fig.5 RAM access.
9.3
Parallel output interface
The digital parallel output interface can be used in 3 different modes depending on the OCIR and OEN select pins.
Output data shall be latched on the falling edge of OCLK.
Table 2
X = don’t care.
Parallel output modes
By means of an external digital-to-analog converter, either the CIR or I/Q data can be displayed on an oscilloscope.
Digital output data is clocked out on the falling edge of the OCLK output signal. In case of baseband output the OIQ signal
indicates, if the current sample is either I or Q data.
OCIR
OEN
DESCRIPTION
0
1
X
0
0
1
channel impulse response sampled at 64 kHz, OIQ = frame trigger
baseband sampled at 2048 kHz and with I and Q data multiplexed
OUT[7:0], OIQ and OCLK disabled
OCLK
OUT[7:0]
OIQ
Q
I
Q
I
Q
4096 kHz
signed
2048 kHz
Fig.6 Baseband output signals (OCIR = HIGH, OEN = LOW).
OCLK
OIQ
64 kHz
unsigned
OUT[7:0]
trigger
Fig.7 CIR output signals (OCIR = LOW, OEN = LOW).
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