Semiconductors > Telecommunication



Mfg. Part # Description Condition Price Buy
MOTOROLA
MC34012-2P 		IC, PDIP8. Telephone tone ringer. Complete telephone bell ringer replacement with minimum of external parts. Direct drive for PZT transducers. High tone: 2080Hz. Low tone: 1664Hz. Warble tone: 13Hz. Output: 20Vp-p 20mA source or sink. NS $3.75
CISCO SYSTEMS
73-8545-02 07 		HWIC board, requires plug-in p/s. "Brilliant" NEW $29.85
MOSTEK
MK5089N 		Integrated Tone Dialer DIP16 New. Digital divider logic, resistive ladder network, CMOS. Requires TV color burst crystal 3.579545MHz to provide eight different audio sinusoidial frequencies which are mixed to provide DTMF (Dual-Tone-Multi-Frequency) tones. NS $9.50
MOSTEK
MK5380N 		IC, Telephone Tone Dialer, integrated. Direct telephone line operated. Uses  3.579545MHz color burst crystals to provide high accuracy tones. Uses Form A (N.O.) contacts or 2-of-8 keyboard. On-chip regulation of dual and single tone amplitudes. PDIP-16. NS $5.95
MOSTEK
MK5375N 		IC. Telephone dialer circuit, repertory tone/pulse dialer. Nominal supply 5V. Case: 18 Dip. FN $10.00
SHARP
LR40992 		IC. Pulse dialer, last number redial. Case: 18 Dip. FN $4.42
MOTOROLA
MC34011AFN 		IC. Electronic telephone circuit. Provides all basic telephone station apparatus functions in a single ic, including DTMF dialer, tone ringer, speech network and line voltage regulator. Case: PLCC. FN $4.99
TEXAS INSTRUMENTS
TCM5089N 		TELEPHONY TONE GENERATOR NS $3.50
TEXAS INSTRUMENTS
TCM2914J 		IC. Codec circuit. NMOS PCM w/Fil,2914 Cmptbl,u-Law & A-Law. Nominal supply 5V. Case: 24 Cdip. UNKNOWN $19.94
MOSTEK
MK5087 		IC. Integrated Tone Dialer. Ceramic DIP New. NS $19.50
MOSTEK
MK5156J 		IC, Ceramic DIP16. A-Law Companding CODEC. CMOS. +/-5V. Contains 2 circuits: A-to-D and D-to-A converters which conform to the A-law companding code. These 2 sections form a telecom coder-decoder for per-channel voice freq codecs. NS $19.50
NEC
UPC1216V2 		IC. IF tuning signal processing circuit. Maximum frequency (Hz)=1.5M, nom supply (V)=18.Case: 19 Sip, staggered leads. NOS $3.75
NEC
UPC1185H2 		IC, telecom. Dual channel audio power output amplifier. Case: 12 power sip.  NOS $4.38
NEC
UPC1032H 		IC. Dual low noise preamplifier silicon bipolar monolithic. Case Sip. NOS $3.50
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