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U4091BM の電気的特性と機能

U4091BMのメーカーはTEMIC Semiconductorsです、この部品の機能は「Programmable Telephone Audio Processor」です。


製品の詳細 ( Datasheet PDF )

部品番号 U4091BM
部品説明 Programmable Telephone Audio Processor
メーカ TEMIC Semiconductors
ロゴ TEMIC Semiconductors ロゴ 




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U4091BM Datasheet, U4091BM PDF,ピン配置, 機能
www.DataSheet4U.com
Programmable Telephone Audio Processor
U4091BM
Description
The programmable telephone audio processor U4091BM
is a linear integrated circuit for use in feature phones,
answering machines and fax machines. It contains the
speech circuit, tone-ringer interface with DC/DC
converter, sidetone equivalent and ear-protection
rectifiers. The circuit is line-powered and contains all
components necessary for signal amplification and
adaptation to the line. The U4091BM can also be supplied
via an external power supply. An integrated voice switch
with loudspeaker amplifier enables hands-free or
loudhearing operation. With an anti-feedback function,
acoustical feedback during loudhearing can be reduced
significantly. The generated supply voltage is suitable for
a wide range of peripheral circuits.
Features
D Speech circuit with anti-clipping
D Tone-ringer interface with DC/DC converter
D Speaker amplifier with anti-distortion
D Power-supply management (regulated, unregulated)
and a special supply for electret microphone
D Voice switch
D Interface for answering machine and cordless phone
Benefits
D No piezoelectric transducer for tone ringing necessary
D Complete system integration of analog signal proces-
sing on one chip
D Very few external components
Applications
Feature phone, answering machine, fax machine, speaker
phone, cordless phone
Block Diagram
Speech
circuit
DTMF
Ordering Information
Extended Type Number
U4091BM-AFN
U4091BM-AFNG3
Voice
switch
Serial
bus
Audio
amplifier
Tone
ringer
Clock
Data
Reset
MCU
14601
Package
SSO44
SSO44
Remarks
Taped and reeled
Rev. A1, 02-Jun-98
Target Specification
1 (29)

1 Page





U4091BM pdf, ピン配列
Pin Description
Pin Symbol
Function
1 RECIN Receive amplifier input
2 TXACL Time-constant adjustment for
transmit anti-clipping
3 MIC3 Microphone input for hands-free
operation
4 MIC2 Input of symmetrical microphone
amplifier with high common-mode
rejection ratio
5 MIC1 Input of symmetrical microphone
amplifier with high common-mode
rejection ratio
6 RECO2 Output of the receive amplifier
7 RECO1 Output of the receive amplifier, also
used for sidetone network
8 IND The internal equivalent inductance
of the circuit is proportional to the
value of the capacitor at this pin. A
resistor connected to ground may be
used to adjust the DC mask.
9 VL Positive supply-voltage input to the
device in speech mode
10 SENSE Input for sensing the available line
current
11 GND Ground, reference point for DC- and
AC signals
12 VB Unstabilized supply voltage for
speech network
13 SAO2 Negative output of speaker
amplifier (push-pull only)
14 SAO1 Positive output of speaker amplifier
(single ended and push-pull
operation)
15 VMPS Unregulated supply voltage for the
microcontroller (via series regulator
to VMP)
16 VMP Regulated output voltage for
supplying the microcontroller
(typ. 3.3 V/ 6 mA in speech mode)
17 VMIC Reference node for microphone
amplifier, supply for electret
microphones
18 TSACL Time constant for speaker amplifier
anti-clipping
U4091BM
Pin Symbol
Function
19 VRING Input for ringer supply
20 IMPA Input for adjusting the ringer input
impedance
21 COSC 70-kHz oscillator for ringing power
converter
22 SWOUT Output for driving the external
switch resistor
23 INT Interrupt line for serial bus
24 SCL Clock input for serial bus
25 SDA Data line for serial bus
26 OSCIN Input for 3.58-MHz oscillator
27 OSCOUT Clock output for the microcontroller
28 RESET Reset output for the microcontroller
29 ES Input for external supply indication
30 ADIN Input of A/D converter
31 BNMR Output of background-noise monitor
receive
32 BNMT Output of background-noise monitor
transmit
33 CT Time constant for mode switching
of voice switch
34 TLDR Time constant of receive-level
detector
35 INLDR Input of receive-level detector
36 INLDT Input of transmit-level detector
37 TLDT Time constant of transmit-level
detector
38 IMPSW Switch for aditional line impedance
39 MICO Microphone preamplifier output
40 AMPB Input for playback signal of
answering machine
41 AMREC Output for recording signal of
answering machine
42 STO Output for connecting the sidetone
network
43 STC Input for sidetone network
44 STRC Input for sidetone network
Remark: The protection device at Pin RECIN is disconnected.
Rev. A1, 02-Jun-98
Target Specification
3 (29)


3Pages


U4091BM 電子部品, 半導体
U4091BM
READ:
There is a normal and a fast-read cycle.
In the normal read cycle, the microcontroller sends a 4-bit
DTMFF[2:3] Frequency Error / %
address followed by the read indicator, then an 8-bit word
in DTMF
is read out. The U4091BM drives the data line.
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁThe fast read cycle is indicated by a strobe signal. With
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁthe following two clocks the U4091BM reads out the sta-
tus bits RFDO and LIDET which indicate that a ringing
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁsignal or a line signal is present (see figures 4, 5 and 6).
0
1
2
3
Mode
00
01
10
11
1209
1336
1477
1633
–0.110
0.123
–0.020
–0.182
DTMF Dialing
The DTMF generator sends a multi-frequency signal
through the matrix to the line. The signal is the result of
the sum of two frequencies and is internally filtered. The
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁfrequencies are chosen from a low and a high frequency
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁgroup.
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁThe circuit conforms to the CEPT recommendation
DTMFF4 in DTMF mode
Pre-Emphasis Selection
0 2.5 dB
1 3.5 dB
concerning DTMF option.
Two different levels for the low level group and two
different pre-emphasis (2.5 dB and 3.5 dB) can be chosen
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁby means of the serial bus (rec. T/CF 46–03).
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁMelody – Confidence Tone Generation
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁMelody/confidence tone frequencies are given in the
table below.
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁThe frequencies are provided at the DTMF input of the
switch matrix. A sinus wave, a square wave or a pulsed
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁwave can be selected by the serial bus. Square signal
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁmeans the output is half of frequency cycle high and half
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁlow. Pulsed signal means between the high and low
phases are high impedance phases of 1/6 of the period.
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁDTMFM[0:2]
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ0 000 DTMF generator OFF
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ1 001 Confidence tone melody
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁon (sinus)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ2 010 Ringer melody (pulse)
3 011 Ringer melody
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ(square signal)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ4 100 DTMF (high level)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ5 101 DTMF (low level)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ6 110
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ7 111
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁDTMFF[0:1] Frequency Error / %
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁin DTMF
Mode
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ0 00
697 –0.007
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ1 01
770 –0.156
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ2 10
852 0.032
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ3 11
941 0.316
DTMFF
[0:4]
0 00000
1 00001
2 00010
3 00011
4 00100
5 00101
6 00110
7 00111
8 01000
9 01001
10 01010
11 01011
12 01100
13 01101
14 01110
15 01111
16 10000
17 10001
18 10010
19 10011
20 10100
21 10101
22 10110
23 10111
24 11000
25 11001
26 11010
27 11011
28 11100
29 11101
30 11110
31 11111
f
Hz
440.0
466.2
493.9
523.2
554.4
587.3
622.3
659.3
698.5
740.0
784.0
830.0
880.0
932.3
987.8
1046.5
1108.7
1174.7
1244.5
1318.5
1396.9
1480.0
1568.0
1661.2
1760.0
1864.6
1975.5
2093.0
2217.5
2349.3
2663.3
2983.0
Tone-
Name
a1
b1
h1
c2
des2
d2
es2
e2
f2
ges2
g2
as2
a2
b2
h2
c3
des3
d3
es3
e3
f3
ges3
g3
as3
a3
b3
h3
c4
des4
d4
Error/%
–0.008
–0.016
–0.003
0.014
0.018
–0.023
–0.129
0.106
–0.216
–0.222
0.126
–0.169
0.288
–0.014
–0.004
–0.335
–0.355
–0.023
–0.129
0.106
–0.214
–0.222
0.126
–0.241
–0.302
–0.014
0.665
0.367
0.387
0.771
–––
–––
DTMF Key
697 1209
770 1209
852 1209
941 1209
697 1336
770 1336
852 1336
941 1336
697 1477
770 1477
852 1477
941 1477
697 1633
770 1633
852 1633
941 1633
697 1209
770 1209
852 1209
941 1209
697 1336
770 1336
852 1336
941 1336
697 1477
770 1477
852 1477
941 1477
697 1633
770 1633
852 1633
941 1633
1
4
7
*
2
5
8
0
3
6
9
#
A
B
C
D
1
4
7
*
2
5
8
0
3
6
9
#
A
B
C
D
6 (29)
Rev. A1, 02-Jun-98
Target Specification

6 Page



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共有リンク

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部品番号部品説明メーカ
U4091B

Programmable Telephone Audio Processor

TEMIC Semiconductors
TEMIC Semiconductors
U4091BM

Programmable Telephone Audio Processor

TEMIC Semiconductors
TEMIC Semiconductors
U4091BM-N

Programmable Telephone Audio Processor

ATMEL Corporation
ATMEL Corporation


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