U4091B TEMIC Semiconductors, U4091B Datasheet
U4091B
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U4091B Summary of contents
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... TELEFUNKEN Semiconductors Programmable Telephone Audio Processor Description The programmable telephone audio processor U4091B is a linear integrated circuit for use in feature phones, an- swering machines and fax machines. It contains the speech circuit, tone ringer interface with dc/dc converter, sidetone equivalent and ear protection rectifiers. The cir- ...
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... U4091B Serial Bus Controlled Functions Speech circuit D Transmit gain step) D Receive gain: – step) + one 6 dB step D Speaker amplifier gain: – +30 dB (1.5 dB step) D Mute R, Mute T D Automatic gain adjustment ( AGA ): 7 different characteristics W D Impedance selection: 600/ 900 ...
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... RFDO Output of ringing frequency detector LIDET Line detect; output is low when the line current is more than 15 mA Rev. A1: 12.07.1995 Preliminary Information U4091B Pin Symbol Function TSACL Time constant of anti-clipping of speaker amplifier SA I Speaker amplifier input (for loudspeaker, tone ringer and ...
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... U4091B Absolute Maximum Ratings Parameters Line current DC line voltage Maximum input current Junction temperature Ambient temperature Storage temperature Total power dissipation amb Thermal Resistance Parameters Junction ambient SSO44 4 (11) Preliminary Information TELEFUNKEN Semiconductors Symbol Value I 140 RING ...
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... G T CMRR 1.8 Lmax – 6 TTX U4091B = 25 C, Typ. Max. Unit Figure 2.4 5.0 5.4 V 7.5 9.4 10 " 0.5 dB " 0.5 dB " 0 110 4.2 dBm – 80 –72 dBmp 0 ...
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... U4091B Parameters Test Conditions / Pin Receiving amplifier mA, RGR = 62 k, unless otherwise specified Adjustment range mA, L receiving gain single ended differential MUTR = GND Receiving amplification RGR = 62 k differential w Amplification of DTMF signal from DTMF MUTX RECO 1, 2 Frequency response I > ...
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... VSAO MUTX 40 U4091B Typ. Max. Unit Figure – t.b. 200 V psoph " – 60 dBm " " 0 VMP ...
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... U4091B Parameters Test Conditions / Pin Supply voltages, Vmic = 25 mV, T amb mA RDC = 100 mA MPS L RDC = inf mA 300 M RDC = 130 mA Ringing power converter, IMP = 1 mA ...
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... The data line must be stable when the clock is high and data must be serially shifted. After 8 clock periods, the transfer to the destination regis- ter is (internally) generated by a low to high transition of the data line when the clock is high. DATA D C CLOCK U4091B 937613 9 (11) ...
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... U4091B DATA CLOCK 937616 10 (11) Preliminary Information TELEFUNKEN Semiconductors Serial Bus Interface 8 bits register Analog Commands 937615 Rev. A1: 12.07.1995 ...
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... TEMIC against all claims, costs, damages, and expenses, arising out of, directly or indirectly, any claim of personal damage, injury or death associated with such unintended or TEMIC TELEFUNKEN microelectronic GmbH, P.O.B. 3535, D-74025 Heilbronn, Germany Telephone 7131 67 2831, Fax number 7131 67 2423 Rev. A1: 12.07.1995 Preliminary Information unauthorized use. U4091B 11 (11) ...