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PDF GL6962 Data sheet ( Hoja de datos )
| Número de pieza | GL6962 | |
| Descripción | Low Voltage Universal Speech Network | |
| Fabricantes | Hynix Semiconductor | |
| Logotipo |  |
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GL6962/GL6962A
GL6962/GL6962A
Low Voltage Universal Speech Network
Description
The GL6962 and GL6962A are bipolar integrated
circuits that perform all speech and line interface
functions required in fully electronic telephone sets.
They perform electronic switching between dialing
and speech. The ICs operate at line voltage down
to 1.6V DC (with reduced performance) to
facilitate the use of more telephone sets connected
in parallel.
Features
Low DC line voltage: operates down to 1.6V
(excluding polarity guard)
Voltage regulator with adjustable static
resistance
Provides a supply for external circuits
Symmetrical high-impedance inputs (64k¥ Ø) for
dynamic, magnetic or piezo-electric microphones
Asymmetrical high-impedance inputs(32k¥ Ø)
for electric microphones
DTMF signal input with confidence tone
MUTE input for pulse or DTMF dialing
(GL6962)
MUTE input for pulse or DTMF dialing
(GL6962A)
Receiving amplifier for dynamic, magnetic or
piezo-electric earpieces.
Large gain setting ranges on microphone and
earpiece amplifiers.
Line loss compensation (line current dependent)
for microphone and earpiece amplifiers
Gain control curve adaptable to exchange supply
DC line voltage adjustment facility
Packaged in 16 DIP/SOP.
PIN Configuration
(TOP View)
LN 1
TGA1 2
TGA2 3
QR 4
RGA 5
MIC- 6
MIC+ 7
Iref 8
GL6962
16 SLPE
15 AGC
14 REG
13 VCC
12 MUTE
11 DTMF
10 IR
9 VEE
* Pin 12 is active LOW(MUTE) for GL6962A
1
1 page  
GL6962/GL6962A
Electrical Characteristics
Iline = 11 to 140 mA, VEE = 0V, f = 800Hz; Tamb = 25¡ É; unless otherwise specified
SYMBOL
PARAMETER
CONDITION
MIN TYP
Supplies LN and VCC (Pin 1 and 13)
VLN Voltage drop over circuit MIC inputs open circuit
Between LN and VEE
Iline = 1mA
- 1.6
Iline = 4mA
- 1.9
Iline = 15mA
3.55 4.0
Iline = 100mA
4.9 5.7
Iline = 140mA
--
VLN Voltage drop over circuit Iline = 15mA
between LN and VEE with RVA(LN to REG)=68 k§ Ù
- 3.5
external resistor RVA
RVA(REG to SLPE)=39k§ Ù
-
4.5
ICC Supply current
VCC = 2.8V
- 0.9
VCC Supply voltage available for Iline = 15mA
peripheral circuitry
GL6962
MUTE = HIGH
IP = 1.2mA
2.2 2.7
IP = 0mA
- 3.4
GL6962A
MUTE = LOW
IP = 1.2mA
2.2 2.7
IP = 0mA
- 3.4
Microphone inputs MIC- and MIC+ (pin 6 and 7)
| Zi | Input inpedance
Differential
Between MIC- and MIC+ -
64
Single-ended
MIC- or MIC+ to VEE
CMRR Common mode rejection
- 34
- 82
ratio
GV
¥ ÄGvf
Voltage gain MIC+ or MIC-
to LN
Gain variation with
frequency referred to
800Hz
Iline = 15mA
R7 = 68k§ Ù
f = 300 and 3400 Hz
50.5 52.0
- ¡ ¾0.2
MAX
-
-
4.25
6.5
7.5
-
-
1.35
-
-
-
-
-
-
-
53.5
-
UNIT
V
V
V
V
V
V
V
mA
V
V
V
V
k§ Ù
k§ Ù
dB
dB
dB
5
5 Page 
GL6962/GL6962A
Iline
+
100•F
600¥ Ø
100k
10 to
140mA
VO
ZL
C2
C4
100pF
C7
Vi
10
+ 10µF
IR
1
LN
R1
620¥ Ø
13
VCC
4
QR
5
RGA
GL6962A
11
DTMF
12
MUTE
MIC+
7
MIC-
6
SLPE TGA1
TGA2
16 2
3
REG
14
AGC
15
Iref
8
VEE
9
+
C1
100•F
R9
20¥ Ø
C6
100pF
R7
68k¥ Ø 4.7•F
1 nF
+
R6 R5
¥Ø
Fig. 4 Test circuit for defining GL6962A voltage gain of receiving amplifier.
(Voltage gain is defined as GV = 20log |Vo/Vi|
11
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet GL6962.PDF ] | |
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| Número de pieza | Descripción | Fabricantes |
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