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U3501BM Datasheet, PDF (2/20 Pages) TEMIC Semiconductors – Cordless Telephone Signal Processor | |||
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U3501BM
Pin Description
TXO 1
28 TXDAT
CTC 2
27 RXDAT
COIN 3
MICO 4
26 D
25 C
MIC2 5
24 DACO
MIC1 6
23 VCC
GND 7
22 LOIN
RXO 8
21 VBAT
RECO2 9
20 LOEXT
RECO1 10
19 NC
EXIN 11
18 RECDC
ETC 12
17 MIXGND
IFIN2 13
16 MIXIN
IFIN1 14
15 MIXO
96 12 387
Figure 2. Pinning
Pin Symbol
Function
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ 1 TXO Transmit section analog output
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ 2
CTC Compressor time constant control
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ analog output
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ 3 COIN Compressor analog input
4 MICO Microphone amplifier output
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ 5 MIC2 Non-inverting input of microphone
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ amplifier
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ 6 MIC1 Inverting input of microphone
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ amplifier
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ 7 GND LF analog/ digital ground
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ 8 RXO Intermediate receive analog output
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ 9 RECO2 Symmetrical output of receive
amplifier
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ 10 RECO1 Symmetrical output of receive
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ amplifier
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ 11 EXIN Expander analog input
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ 12 ETC Expander time constant control
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ analog output
13 IFIN2 Symmetrical IF amplifier input
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ 14 IFIN1 Symmetrical IF amplifier input
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ 15 MIXO Mixer output
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ 16 MIXIN Mixer input
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ 17 MIXGND IF amplifier and mixer ground
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ 18 RECDC Reference voltage generation for
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ FSK demodulator
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ 19
NC Not connected
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ 20 LOEXT External LO input
21 VBAT Battery supply
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ 22 LOIN Local oscillator input for TCO or
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ SC filter oscillator: 11.15 MHz
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ 23 VCC Supply voltage output for
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ peripherals and internal supply of
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ digital part
24 DACO D/A comparator output
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ 25
C Clock input of serial bus
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ 26
D Data input of serial bus
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ 27 RXDAT Receive data digital output
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ 28 TXDAT Transmit data digital input
2 (20)
TELEFUNKEN Semiconductors
Preliminary Information
Rev. A1, 29-Jul-96
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