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參數(shù)資料
| 型號： | TC9488N |
| 廠商： | 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 |
| 文件頁數(shù)： | 9/14頁 |
| 文件大?。?/td> | 233K |
| 代理商： | TC9488N |
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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