參數(shù)資料
型號(hào)： TDA9874H
廠商： NXP SEMICONDUCTORS
元件分類： 接收器
英文描述： Digital TV sound demodulator/decoder
中文描述： AM/FM, AUDIO DEMODULATOR, PQFP44
封裝： 14 X 14 MM, 2.20 MM HEIGHT, PLASTIC, SOT-205-1, QFP-44
文件頁(yè)數(shù)： 45/56頁(yè)
文件大?。?/td> 254K
代理商： TDA9874H
1998 Apr 27
45
Philips Semiconductors
Preliminary specification
Digital TV sound demodulator/decoder
TDA9874H
V
SSA1
analog ground supply 1,
audio DAC part
analog supply current 1,
audio DAC part
0.0
V
I
DDA1
V
DDA
= 5.5 V; digital silence
V
DDA
= 5.0 V; digital silence
with respect to V
DDA3
/V
SSA3
1.2
1.1
2.1
1.9
50
3.1
2.8
mA
mA
%
V
ref2
reference voltage 2,
audio DACs and operational
amplifiers
Z
(Vref2-VDDA3)
impedance V
ref2
to V
DDA3
Z
(Vref2-VSSA3)
impedance V
ref2
to V
SSA3
20
20
k
k
Digital inputs and outputs
I
NPUTS
CMOS level input, high drive, pull-down (TEST1, TEST2, TP1 and TP2)
V
IL
V
IH
C
i
Z
i
CMOS level input, hysteresis, high drive, pull-up (CRESET)
LOW-level input voltage
HIGH-level input voltage
input capacitance
input impedance
3.0
50
1.6
10
V
V
pF
k
V
IL
V
IH
V
hys
C
i
Z
i
I
NPUTS
/
OUTPUTS
LOW-level input voltage
HIGH-level input voltage
hysteresis voltage
input capacitance
input impedance
4.0
0.33V
DDD
50
1.0
V
V
V
pF
k
10
I
2
C level input with Schmitt trigger, open-drain output stage (SCL and SDA)
V
IL
V
IH
V
hys
I
LI
C
i
V
OL
C
L
LOW-level input voltage
HIGH-level input voltage
hysteresis voltage
input leakage current
input capacitance
LOW-level output voltage
load capacitance
3.0
0.33V
DDD
1.6
V
V
V
μ
A
pF
V
pF
pF
±
10
10
0.5
400
200
active pull-up
passive pull-up
TTL/CMOS level, high drive, 4 mA 3-state output stage, pull-up (PCLK, NICAM, ADDR1, ADDR2, P1, P2, SCK, WS
and SDO)
V
IL
V
IH
C
i
V
OL
V
OH
C
L
LOW-level input voltage
HIGH-level input voltage
input capacitance
LOW-level output voltage
HIGH-level output voltage
load capacitance
2.0
2.9
0.8
10
0.5
50
V
V
pF
V
V
pF
I
OL
= +3 mA
I
OH
=
3 mA
active pull-up
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
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