TEA1066T Philips Semiconductors (Acquired by NXP), TEA1066T Datasheet - Page 7

• Manufacturer Part Number: TEA1066T
• Description: Versatile Telephone Transmission Circuit With Dialer Interface
• Manufacturer: Philips Semiconductors (Acquired by NXP)

Philips Semiconductors
The attenuation is almost constant over the whole audio
frequency range. Figure 5 shows a conventional
Wheatstone bridge anti-side-tone circuit that can be used
as an alternative. Both bridge types can be used with
either resistive or complex set impedances.
The anti-side-tone network as used in the standard
application (see Fig.13) attenuates the signal from the line
1996 Apr 04
handbook, full pagewidth
handbook, full pagewidth
Versatile telephone transmission circuit
with dialler interface
Fig.5 Equivalent circuit of an anti-side-tone network in a Wheatstone bridge configuration.
Fig.4 Equivalent circuit of TEA1060 family anti-side-tone bridge.
Z line
Z line
V EE
V EE
R1
R9
R1
R9
SLPE
LN
SLPE
LN
i m
R8
7
with 32 dB. The attenuation is nearly flat over the
audio-frequency range.
Instead of the previously-described special TEA1066
bridge, the conventional Wheatstone bridge configuration
can be used as an alternative anti-side-tone circuit. Both
bridge types can be used with either a resistive set
impedance or a complex set impedance.
R2
i m
R3
Z bal
R8
Z bal
R A
IR
IR
MSA500 - 1
R t
MSA501 - 1
R t
Product specification
TEA1066T