ILA1068 Datasheet, PDF (1/11 Pages) List of Unclassifed Manufacturers – Versatile Telephone Transmission Circuit with Dialler Interface

TECHNICAL DATA
ILA1068
Versatile Telephone Transmission Circuit
with Dialler Interface
The ILA1068 is a bipolar integrated circuit performing all speech and
line interface functions required in fully electronic telephone sets. It
performs electronic switching between dialling and speech.
• Voltage regulator with adjustable static resistance
• Provides supply for external circuitry
• Symmetrical high-impedance inputs (64 KΩ) for dynamic,
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magnetic or piezoelectric microphones
• Asymmetrical high-impedance input (32 KΩ) for electret
microphone
ORDERING INFORMATION
• Dual-Tone Multi-Frequency (DTMF) signal input with ^ILA1068N
Plastic DIP
confidence tone
• Mute input for pulse or DTMF dialling
• Power down input for pulse dial or register recall
T_A = -25° to 75° C
for package
• Receiving amplifier for magnetic, dynamic or piezoelectric
earpieces
• Large gain setting range on microphone and earpiece amplifiers
• Line current-dependent line loss compensation facility for
microphone and earpiece amplifiers
• Gain control adaptable to exchange supply
• DC line voltage adjustment facility
BLOCK DIAGRAM
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