參數(shù)資料
型號(hào): 7442
廠商: Fairchild Semiconductor Corporation
英文描述: BCD to Decimal Decoder
中文描述: BCD碼的十進(jìn)制譯碼器
文件頁數(shù): 5/16頁
文件大?。?/td> 218K
代理商: 7442
ELECTRICAL CHARACTERISTICS
(continued)
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
SPEAKER ATTENUATORS
C
range
Control Range
S
STEP
Step Resolution
E
A
Attenuation set error
79
1
0
0
0
100
30
dB
dB
dB
dB
mV
dB
K
-0.5
-1.5
-3
-3
+70
21
1.5
1.5
2
3
Av = 0 to -20dB
Av = -20 to -79dB
adjacent att. steps
V
DC
A
MUTE
R
VEA
DC Steps
Output Mute Condition
Input Impedance
39
AUDIO OUTPUTS
N
O(OFF)
Output Noise (OFF)
Output Mute, Flat
B
W
= 20Hz to 20KHz
Mode = Music ,
B
W
= 20Hz to 20KHz,
Mode = Pseudo Stereo
B
W
= 20Hz to 20KHz,
Av = 0 ; V
in
= 1Vrms
4
5
30
μ
Vrms
μ
Vrms
mVrms
N
O(MUS)
Output Noise (Music)
N
O(PSEUDO)
Output Noise (Pseudo Stereo)
30
mVrms
d
Distorsion
Channel Separation
Clipping Level
Output Resistance
DC Voltage Level
0.01
90
2.5
30
3.8
0.1
%
dB
Vrms
V
S
C
V
OCL
R
OUT
V
OUT
70
2
10
d = 0.3%
50
MONITOR OUTPUTS
d
S
C
V
OCL
R
OUT
V
OUT
Distorsion
Channel Separation
Clipping Level
Output Resistance
DC Voltage Level
Av = 0 ; V
in
= 1Vrms
0.01
90
2.5
50
4.5
0.1
%
dB
Vrms
V
70
2
20
d = 0.3%
70
BUS INPUTS
V
IL
V
IH
I
IN
V
O
Input Low Voltage
Input High Voltage
Input Current
Output Voltage SDA
Acknowledge
1
V
V
μ
A
V
3
-5
+5
0.4
I
O
= 1.6mA
TDA7442 - TDA7442D
5/16
相關(guān)PDF資料
PDF描述
7446A BCD-TO-SEVEN-SEGMENT DECODERS/DRIVERS
7446A BCD to 7-Segment Decoders/Drivers
7446A BCD to 7-Segment Decoders/Drivers
7447 BCD TO 7-SEGMENT DECODER-DRIVER(Low=on, 40-mA, 30-Volt Outputs)
7448 Dcvice converts BCD input data into control signals for 7-segment displays
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