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參數(shù)資料
| 型號(hào)： | AN6472NFBP |
| 廠商： | PANASONIC CORP |
| 元件分類： | 無(wú)繩電話/電話 |
| 英文描述： | Cordless Telephone Speech Network IC Incorporating Cross-Point Switch |
| 中文描述： | TELEPHONE SPEECH CKT, PQFP64 |
| 封裝： | 14 X 14 MM, PLASTIC, QFP-64 |
| 文件頁(yè)數(shù)： | 12/19頁(yè) |
| 文件大?。?/td> | 216K |
| 代理商： | AN6472NFBP |
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12
ICs for Telephone
AN6472NFBP
20
21
22
23
24
25
26
27
28
O
I
I
I
I
O
I
I
I
DMC
CPC
STR
CLK
DATA
MIC preamp. output :
R12 and C14 connected
between Pin 22 and this pin
determine the f. characteris-
tics.
The output impedance is up to
1 k
.
MIC preamp. input (1) :
A bias resistor and a micro-
phone connect to this pin.
MIC preamp. input (2) :
R12 and C14 connected
between Pin 20 and this pin
determine the f. characteristics.
Dial mute control :
Normal speech mode when
Pin 23 is high or open (MIC
amp. ON and rec. amp. ON).
DTMF mode when Pin 23 is
low (DTMF amp. ON and BT
amp. ON).
Line voltage control :
Line voltage is normal when
the input voltage at this pin is
high. Line voltage increases
by 1-1.5 V when the input
voltage is low.
Line interruption detector output :
This is an open collector output to a
microprocessor, requiring a pull-up
resistor connected to the microproc-
essor's power supply. This pin goes
low when line voltage is 3.0 V or
more, and goes high when 1.5 V or
less.
Strobe signal input :
The strobe signal for serial
control data is input to this
pin. The rising edge of the
strobe signal determines the
timing at which internal con-
trol address or ON/OFF status
is validated.
Clock signal input :
The clock signal for serial control
data is input to this pin. The rising
edge of the clock signal determines
the timing at which data is read.
Data input :
Serial data is input to this pin.
Data is read into the internal
shift register in synchroniza-
tion with clock signals.
MIC
OUT
MIC
IN
(+)
MIC
IN
(–)
DC –
CONT
V
CC
0.2V
Line DC voltage
L–V
CC
0.2V
Line interruption
0V
5V
0V
5V
0V
5V
V
REF
– SN
–
+
10k
Vref
–
+
20
21
22
61
100k
23
200k
200k
150k
24
26
300k
L–V
CC
10k
27
300k
L–V
CC
10k
300k
L–V
CC
10k
28
2
25
56k
L–V
CC
144k
VL
100k
V
REF
– SN
V
REF
– SN
I
Pin Descriptions (cont.)
Waveform
Description
Remarks
Pin No.
Pin name
I/O
Equivalent circuit
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AN6474NFBQ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telephone Speech Circuit |
| AN6477FBP | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telephone Speech Circuit |
| AN6480 | 制造商:PANASONIC 制造商全稱:Panasonic Semiconductor 功能描述:IF Amplifier for Car Telephone |
| AN6484FBP | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Cell-Phone Circuit |
| AN649 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:HFTA-04.0: Optical/Electrical Conversion in SDH/SONET Fiber Optic Systems |
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