參數(shù)資料
型號(hào): TC9455N
廠(chǎng)商: Toshiba Corporation
英文描述: TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
中文描述: 東芝的CMOS數(shù)字集成電路硅單片
文件頁(yè)數(shù): 9/14頁(yè)
文件大?。?/td> 233K
代理商: TC9455N
TC9455,88F/N
2002-02-05
9
AC Characteristics
Microphone amps and volumes
Characteristics
Symbol
Test
Circuit
Test Condition
Min
Typ.
Max
Unit
Microphone amp gain
MICG
Input 1-kHz sine wave,
50dBV, MCO pin measured.
47.5
49.5
51.5
dBV
MCO Output at ALC Operation
VM
Input 1-kHz sine wave,
25dBV.
0.8
1.7
3.2
dBV
Maximum Input at No ALC Operation
VL
Input 1-kHz sine wave.
47.5
dBV
Maximum Input 1 at ALC Operation
VA1
Input 1-kHz sine wave. MCO
output clip limit vale at max
volume
4.0
dBV
Maximum Input 2 at ALC Operation
VA2
Input 1-kHz sine wave. MCO
output clip limit value at
microphone amp output point
6.5
dBV
POOUT output noise 1
NO1
VOL1~3: min
90
85
dBV
POOUT output noise 2
NO2
VOL1: max, VOL2: min,
VOL3: min
63
58
dBV
POOUT output noise 3
NO3
VOL1: min, VOL2: max,
VOL3: min
64
59
dBV
POOUT output noise 4
NO4
VOL1: min, VOL2: min,
VOL3: max
65
54
dBV
POOUT output noise 5
NO5
VOL1: max, VOL2: max,
VOL3: min
60
54
dBV
POOUT output noise 6
NO6
VOL1: max, VOL2: min,
VOL3: min
62
54
dBV
POOUT output noise 7
NO7
VOL1: min, VOL2: max,
VOL3: max
62
54
dBV
POOUT output noise 8
NO8
VOL1~3: max
59
52
dBV
Volume 1, 2 attenuation
ATT1
Ratio with one level higher
(excluding the minimum level)
2.0
dB
Volume 3 attenuation
ATT2
Ratio with one level higher
(excluding the minimum level)
1.0
dB
C = 47 μF
(Note 3)
120
Attack time
T
ATK
1 kHz Sine
wave input,
20dBV
10dBV
C = 0.47 μF
(Note 3)
10
ms
C = 47 μF
(Note 3)
1.6
Release time
T
RLS
1 kHz Sine
wave input,
10dBV
20dBV
C = 0.47 μF
(Note 3)
0.15
s
Note 3: External capacitor of ALC pin
Microcontroller interface
(when VOLST = “H”)
Characteristics
Symbol
Test
Circuit
Test Condition
Min
Typ.
Max
Unit
Interface setup time
tIFS
(Note 4)
0.25
μs
Shift clock “L” duration
tL
0.25
μs
Shift clock “H” duration
tH
0.25
μs
Data setup time
tDS
0.25
μs
Data hold time
tDH
0.25
μs
Interface hold time
tIFH
(Note 4)
1.0
μs
CS
“H” duration
tCSH
(Note 4)
0.25
μs
Note 4: With TC9488F and TC9488N
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