TC9455N Toshiba Semiconductor, TC9455N Datasheet - Page 9

• Manufacturer Part Number: TC9455N
• Description: (TC9455 / TC9488) TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
• Manufacturer: Toshiba Semiconductor

AC Characteristics
Microphone amps and volumes
Microphone amp gain
MCO Output at ALC Operation
Maximum Input at No ALC Operation
Maximum Input 1 at ALC Operation
Maximum Input 2 at ALC Operation
POOUT output noise 1
POOUT output noise 2
POOUT output noise 3
POOUT output noise 4
POOUT output noise 5
POOUT output noise 6
POOUT output noise 7
POOUT output noise 8
Volume 1, 2 attenuation
Volume 3 attenuation
Attack time
Release time
Note 3: External capacitor of ALC pin
Microcontroller interface
Interface setup time
Shift clock “L” duration
Shift clock “H” duration
Data setup time
Data hold time
Interface hold time
Note 4: With TC9488F and TC9488N
CS “H” duration
Characteristics
Characteristics
(when VOLST = “H”)
Symbol
Symbol
MICG
ATT1
ATT2
T
T
tCSH
NO1
NO2
NO3
NO4
NO5
NO6
NO7
NO8
VA1
VA2
tIFH
tIFS
tDH
tDS
VM
VL
ATK
RLS
tH
tL
Circuit
Circuit
Test
Test
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9
Input 1-kHz sine wave,
−50dBV, MCO pin measured.
Input 1-kHz sine wave,
−25dBV.
Input 1-kHz sine wave.
Input 1-kHz sine wave. MCO
output clip limit vale at max
volume
Input 1-kHz sine wave. MCO
output clip limit value at
microphone amp output point
VOL1~3: min
VOL1: max, VOL2: min,
VOL3: min
VOL1: min, VOL2: max,
VOL3: min
VOL1: min, VOL2: min,
VOL3: max
VOL1: max, VOL2: max,
VOL3: min
VOL1: max, VOL2: min,
VOL3: min
VOL1: min, VOL2: max,
VOL3: max
VOL1~3: max
Ratio with one level higher
(excluding the minimum level)
Ratio with one level higher
(excluding the minimum level)
1 kHz Sine
wave input,
−20dBV
→ −10dBV
1 kHz Sine
wave input,
−10dBV
→ −20dBV
Test Condition
Test Condition
C = 47 µF
C = 0.47 µF
C = 47 µF
C = 0.47 µF
(Note 3)
(Note 3)
(Note 3)
(Note 3)
(Note 4)
(Note 4)
(Note 4)
−0.8
47.5
0.25
0.25
0.25
0.25
0.25
0.25
Min
Min
1.0
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TC9455,88F/N
−47.5
Typ.
49.5
−4.0
−2.0
−1.0
0.15
Typ.
−90
−63
−64
−65
−60
−62
−62
−59
120
1.7
6.5
1.6
10
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2002-02-05
51.5
Max
Max
−85
−58
−59
−54
−54
−54
−54
−52
3.2
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dBV
dBV
dBV
dBV
dBV
dBV
dBV
dBV
dBV
dBV
dBV
dBV
dBV
Unit
Unit
ms
dB
dB
µs
µs
µs
µs
µs
µs
µs
s