(China (Mainland))
Product Summary
The FM1062A is an integrated circuit that perform all speech and line interface functions required in fully electronic telephone sets. They perform electronic switching between dialling and speech. The FM1062A operates at line voltage down to 1.6 V DC (with reduced performance) to facilitate the use of more telephone sets connected in parallel. The FM1062A improves the EMC performance in-circuit which can enhance the telephone sets’ EMC.
Parametrics
FM1062A absolute maximum ratings: (1)positive continuous line voltage, VLN: 12 V; (2)repetitive line voltage during switch-on or line interruption, VLN (R): 13.2 V; (3)repetitive peak line voltage for a 1 ms pulse per 5 s R9 = 20Ω; R10 = 13Ω, VLN (RM): 6 28 V; (4)line current R9 = 20Ω, Iline: 140 mA; (5)total power dissipation R9 = 20Ω, Ptot: 600 mW; (6)operating ambient temperature, Tamb: -25 to +75℃; (7)storage temperature, Tstg: -40 to +125℃.
Features
FM1062A features: (1)Low DC line voltage; operates down to 1.6 V (excluding polarity guard); (2)Voltage regulator with adjustable static resistance; (3)Provides a supply for external circuits; (4)Symmetrical high-impedance inputs (64KΩ) for dynamic, magnetic or piezoelectric microphones; (5)Asymmetrical high-impedance input (32KΩ) for electrets microphones; (6)DTMF signal input with confidence tone; (7)Mute input for pulse or DTMF dialling: active LOW (MUTE); (8)Receiving amplifier for dynamic, magnetic or piezoelectric earpieces; (9)Large gain setting ranges on microphone and earpiece amplifiers; (10)Line loss compensation (line current dependent) for microphone and earpiece amplifiers; (11)Gain control curve adaptable to exchange supply; (12)DC line voltage adjustment facility; (13)enhanced EMC performance.
Diagrams
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 FM1062A |
Other |
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Data Sheet |
Negotiable |
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Negotiable |
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