TEA0676 Philips Semiconductors (Acquired by NXP), TEA0676 Datasheet - Page 4

• Manufacturer Part Number: TEA0676
• Description: TEA0676T; Dual Pre-amplifier And Equalizer For Reverse Tape Decks;; Package: SOT162-1 (SO16)
• Manufacturer: Philips Semiconductors (Acquired by NXP)

Philips Semiconductors
PINNING
FUNCTIONAL DESCRIPTION
Gain of pre-amplifier = 30 dB; minimum gain of
EQ-amplifier = 24.5 dB at f = 1 kHz with 70 s cut-off
frequency.
Head switching is achieved when pin 10 (HSW) is
connected to ground via a 27 k resistor (inputs INA2,
1997 Oct 07
OUTA
n.c.
EQOUTA
EQINA
V
INA1
V
INA2
INB2
HSW
INB1
GND
EQINB
EQOUTB
EQSW
OUTB
SYMBOL
CC
ref
Dual pre-amplifier and equalizer for
reverse tape decks
PIN
10
12
13
14
15
16
11
1
2
3
4
5
6
7
8
9
output channel A
not connected
output equalizer channel A
input equalizer channel A
supply voltage
input channel A1
(forward or reverse)
reference voltage
input channel A2
(reverse or forward)
input channel B2
(reverse or forward)
input head switch
input channel B1
(forward or reverse)
ground
input equalizer channel B
output equalizer channel B
input equalizer switch
output channel B
DESCRIPTION
4
INB2 are active) or connected to HIGH level (0.8V
(inputs INA1, INB1 are active).
Equalization time constant switching (70 s/120 s) is
achieved when pin 15 (EQSW) is connected to ground via
an 18 k resistor (120 s) or left open-circuit (70 s).
handbook, halfpage
EQOUTA
EQINA
OUTA
INA1
INA2
V CC
V ref
n.c.
Fig.2 Pin configuration.
1
2
3
4
5
6
7
8
TEA0676T
MGE861
16
15
14
13
12
11
10
9
Product specification
OUTB
EQSW
EQOUTB
EQINB
GND
INB1
HSW
INB2
TEA0676T
CC
)