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參數(shù)資料
| 型號(hào)： | TC9488F |
| 元件分類(lèi)： | 消費(fèi)家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO30 |
| 封裝： | 0.375 INCH, 1 MM PITCH, PLASTIC, SSOP-30 |
| 文件頁(yè)數(shù)： | 8/14頁(yè) |
| 文件大?。?/td> | 313K |
| 代理商： | TC9488F |
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TC9455,88F/N
2002-02-05
3
Pin Description (Note 1)
Pin Number
TC9455N
TC9488N
TC9455F
TC9488F
Symbol
I/O
Function
Remarks
1
VDD
―
Digital supply voltage pin
2
CSCC
I
Capacitor connecting pin for CR oscillator (C = 68 pF)
3
OSCR
I
Resistor connecting pin for CR oscillator (R = 5.6 k)
4
5
VOL1 ( CS )
I
When VOLST = “H” level, CS signal input pin
When VOLST = “L” level, DC control pin for MIC1 volume
5
6
VOL2 (SCL)
I
When VOLST = “H” level, clock input pin
When VOLST = “L” level, DC control pin for MIC2 volume
Open drain output
6
7
VOL3 (SDA)
I
When VOLST = “H” level, data input pin
When VOLST = “L” level, DC control pin for echo volume
Open drain output
7
9
VRO
―
Reference voltage pin
8
10
VREF
―
Reference voltage pin (1/2 VDD)
9
11
VDA
―
Analog supply voltage pin
10
13
ALC1
I
Auto level control pin 1
11
14
MC1N
I
MIC1 feedback signal input pin
12
15
MC1P
I
MIC1 signal input pin
13
16
MC2P
I
MIC2 signal input pin
14
17
MC2N
I
MIC2 feedback signal input pin
15
18
ALC2
I
Auto level control pin 2
16
20
VSA
―
Analog ground pin
17
21
MCO
O
MIC addition signal output pin
18
22
PRIN
I
Pre-filter input pin
19
23
ADIN
I
Pre-filter output signal or DC input pin
20
25
DAOUT
O
Post-filter output pin
21
26
VOLST
I
Electronic volume control mode select pin
When VOLST = “H” level, serial control (I
2C bus/three-lead)
When VOLST = “L” level, DC level control
22
28
TEST
I
Test pin. Fix to “H” level for normal use
23
29
POOUT
O
Microphone echo signal output pin
24
30
VSS
―
Digital ground pin
Note 1: With the TC9455F and TC9488F, pins 4, 8, 12, 19, 24, and 27 are not connected (NC pins).
NC pins are normally open.
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