TEA1112A NXP Semiconductors, TEA1112A Datasheet - Page 14

• Manufacturer Part Number: TEA1112A
• Manufacturer: NXP Semiconductors

Specifications of TEA1112A

• Max Transmitter Gain: 53dB
• Receiver Gain (max): 32.7dB
• Operating Temp Range: -25C to 75C
• Package Type: PDIP
• Pin Count: 16
• Operating Current: 1.15mA
• Operating Temperature Classification: Commercial
• Mounting: Through Hole
• Lead Free Status / Rohs Status: Not Compliant

Philips Semiconductors
1997 Mar 26
I
DTMF amplifier (pin DTMF)
G
G
Mute function (pins MUTE; TEA1112 and MUTE; TEA1112A)
V
V
I
SYMBOL
stop
MUTE
Z
G
G
G
IL
IH
Low voltage versatile telephone
transmission circuits with dialler interface
vdtmf
vct
i
vdtmf(f)
vdtmf(T)
trxm
lowest line current for minimum gain
input impedance
voltage gain from DTMF to LN in
DTMF dialling or microphone MUTE
mode
gain variation with frequency
referred to 1 kHz
gain variation with temperature
referred to 25 C
voltage gain from DTMF to QR
(confidence tone)
LOW level input voltage
HIGH level input voltage
input current
gain reduction for microphone and
receiving amplifiers in DTMF dialling
mode
PARAMETER
V
f = 300 to 3400 Hz
T
V
R
input level = HIGH
amb
DTMF
DTMF
L
= 150
= 25 to +75 C
CONDITIONS
= 20 mV (RMS)
= 20 mV (RMS);
14
24.3
V
V
EE
EE
MIN.
+ 1.5
TEA1112; TEA1112A
0.4
61
20
25.5
1.25
80
TYP.
0.2
0.4
18
Product specification
26.7
V
V
3
EE
CC
MAX.
+ 0.3 V
+ 0.4 V
mA
k
dB
dB
dB
dB
dB
UNIT
A