参数资料
型号: TDA7572
厂商: STMICROELECTRONICS
元件分类: 模拟信号调理
英文描述: SPECIALTY ANALOG CIRCUIT, PQFP64
封装: ROHS COMPLIANT, HIQUAD-64
文件页数: 13/64页
文件大小: 1052K
代理商: TDA7572
Electrical specifications
TDA7572
Attenuation step size
INLEVEL1=0, INLEVEL0=0
0.5-0.25
0.5
0.5+
0.25
dB
INLEVEL1=0, INLEVEL0=1
0.44-
0.25
0.44
0.44+
0.25
INLEVEL1=1, INLEVEL0=0
0.55-
0.25
0.55
0.55+
0.25
INLEVEL1=1, INLEVEL0=1
0.48-
0.25
0.48
0.48+
0.25
Gain Change ZC
comparator offset
(in the diff. – S.E. block)
offset
Observed at AOUT pin
ZC crossing must be detected
within 50mV of the actual zero
crossing,
-80
80
mV
Gain Change ZC
comparator offset
(in the diff. – S.E. block)
offset
Observed at InvOut pin
ZC crossing must be detected
-220
+220
mV
Mute
Mute attenuation
Mute pin voltage = Dgnd
Vin=1Vrms
90
dB
Charge current
Mute Pin Voltage(57) = 1.5V
-30%
100
+30%
A
Discharge current
Mute Pin Voltage(57) = 1.5V
-30%
100
+30%
A
Mute threshold
Maximum voltage where we must
be in complete mute
1.5
V
Unmute threshold
2.5
V
Mute to unmute transition
voltage
0.2
0.3
0.42
V
Vol
IC in mute mode, FastMute=1
Iout=0
Digital
GND +
0.1
V
Voh
IC in unmute, Iout=0
VDIGITAL-
0.1
V
Fast mute Resistance
FASTMUTE=1
Vmutepin=1.5Volts
420
550
680
Ohm
Table 8.
Input stage
Symbol
Parameters
Test conditions
Min.
Typ.
Max.
Units
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