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參數(shù)資料
| 型號： | AN6472NFBP |
| 廠商： | PANASONIC CORP |
| 元件分類： | 無繩電話/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 |
| 文件頁數(shù)： | 15/19頁 |
| 文件大?。?/td> | 216K |
| 代理商： | AN6472NFBP |
15
ICs for Telephone
AN6472NFBP
52
O
53
I
54
O
55
I
MIX preamp. output :
A C/R combination between Pin
5
3
and this pin determines the gain and f.
characteristics of the MIX preamp.
Output impedance is 50
.
MIX link input :
MIX signals are input through a
coupling capacitor to this pin.
AUX preamp. output :
A C/R combination between Pin
55
and this pin determines the gain and f.
characteristics of the AUX preamp.
Output impedance is 50
.
AUX link input :
AUX signals are input through a
coupling capacitor to this pin.
Intercom link input :
Intercom signals are input
through a coupling capacitor
C30 to this pin.
Input impedance is 10k
RF1 link input :
RF1 signals are input through
a coupling capacitor C31 to
this pin.
Input impedance is 10k
.
RF2 link input :
Same as above.
Power-ON reset control :
C33 between this pin and
GND determines the power-
ON reset time of the logic cir-
cuits.
External supply voltage input :
–5
±
0.5V power supply is input
to this pin.
Internal supply voltage output :
A power supply derived from line
voltage is output from this pin to the
internal speech net
work.
Circuit voltage control (2) :
This pin is grounded through
C36.
Line current bypass (1) :
Line current is bypassed from
this pin through R36 to Pin 2.
R36 must be 1/2 W or more.
Line current bypass :
Line current is bypassed from
this pin through R35 to GND.
R35 must be 1/2 W or more.
AUT
IN
56
I
DH IN
57
I
RF1
IN
VCC
Vreg
VLC
RF2
IN
PR
PD2
MIX
OUT
MIX
IN
AUX
OUT
V
REF
– SN
V
REF
– SN
V
REF
– SN
V
REF
– SN
58
I
59
I
60
V
REF
– SN
±
0.5V
5V
61
O
62
63
O
PD1
64
I
DC
2V during power
V
CC
to 0.2V
2 to 5 VDC
depending on
V
L
0 to 3 V depending
L
DC
DC
Same as above
V
L
–33
×
I
L
The gain of the MIX
preamp. is calculated the
same way as the rec.
preamp.
The gain of the AUX
preamp. is calculated the
same way as the rec.
preamp.
The input impedance as
illustrated left and C30,
C31, or C32 form a
HPF.
Z
Tel
is 1.5-2.0k
on the
IC side. It must be
adjusted to 600
by
inserting a 820
resistor
between VL and GND.
C36 (typically 47
μ
F)
determines how the cir-
cuit voltage fluctuates.
The larger C33, the longer
the power-ON reset time.
The power-ON reset signal
is output when the supply
voltage reaches 4V.
53
Vref–SN
to LINK SW
52
I
Pin Descriptions (cont.)
Waveform
Description
Remarks
Pin No.
Pin name
I/O
Equivalent circuit
56
Vref–SN
10k
to LINK SW
to LINK SW
Vref–SN
57/58
10k
V
CC
Comparator
50k
150k
VL
2
61
2
P
VL
33
15
63
64
2
64
62
820
100
μ
F
R36
33
V
L
64
–
+
55
Vref–SN
to LINK SW
54
–
+
–
+
59
–
+
–
+
Reset
signal
63
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AN649 | HFTA-04.0: Optical/Electrical Conversion in SDH/SONET Fiber Optic Systems |
| AN6500 | BUILT-IN REFERENCE VOLTAGE OPERATIONAL AMPLIFIERS |
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相關(guān)代理商/技術(shù)參數(shù) |
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| 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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