W6691CD WINBOND [Winbond], W6691CD Datasheet - Page 22
W6691CD
Manufacturer Part Number
W6691CD
Description
ISDN S/T Interface Transceiver
Manufacturer
WINBOND [Winbond]
Datasheet
1.W6691CD.pdf
(106 pages)
- Current page: 22 of 106
- Download datasheet (466Kb)
The transmitter and receiver are implemented by differential circuits to increase signal to noise ratio (SNR).
The nominal differential line pulse amplitude at 100
1:1 turn ration are needed at transmitter and receiver for voltage level translation and DC isolation.
To meet the electrical characteristic requirements in I.430, some additional circuits are needed. At the
transmitter side, the external resistors (5 to 10
the transmitter active impedance ( 20
TE
W6691
TR
TR
TR
TE1
TE1
W6691
W6691
Fig.7.2 W6691 wiring configuration in TE applications
(c) Extended passive bus configuration
(b) Short passive bus configuration
(a) Point-to-point configuration
50m
. . . . .
10m
10m
) when transmitting binary zeros. At the receiver side, the 1.8 k
100~200 m
100~200 m
) are used to adjust the output pulse amplitude and to meet
. . . . .
TE8
1000 m
22
termination is 750 mV, zero to peak. Transformers with
TE8
Preliminary W6691
Publication Release Date: Sep 2001
TR
TR
TR
TR : Terminating Resistor
NT
NT
NT
Revision 1.1
Related parts for W6691CD
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Isdn S/t Interface Transceiver
Manufacturer:
Winbond Electronics Corp America
Datasheet:
Part Number:
Description:
WINBOND I/O, UART, infrared, parallel port, game port, MIDI port, flash ROM interface, general purpose I/O ports, FDC, hardware monitor functions
Manufacturer:
Winbond
Datasheet:
Part Number:
Description:
13-MEMORY TONE/PULSE DIALER WITH SAVE FUNCTION
Manufacturer:
Winbond
Datasheet:
Part Number:
Description:
TOUCH PULSE DIALER WITH REDIAL
Manufacturer:
Winbond
Datasheet:
Part Number:
Description:
Tone/pulse dialer with redial function
Manufacturer:
Winbond
Datasheet:
Part Number:
Description:
TOUCH PULSE DIALER WITH REDIAL
Manufacturer:
Winbond
Datasheet:
Part Number:
Description:
DTMF Transmitter, 3.58MHz, 5V, Standby, CMOS, 18-PDIP
Manufacturer:
Winbond
Datasheet:
Part Number:
Description:
SERIAL VOICE SRAM (128K 1 BIT)
Manufacturer:
Winbond
Datasheet:
Part Number:
Description:
DTMF Transmitter, 3.58MHz, 5V, Standby, CMOS, 18-PDIP
Manufacturer:
Winbond
Datasheet:
Part Number:
Description:
13-MEMORY TONE/PULSE DIALER WITH SAVE FUNCTION
Manufacturer:
Winbond
Datasheet:
Part Number:
Description:
WE9142ATone/Pulse Telephone Dialer
Manufacturer:
Winbond
Datasheet:
Part Number:
Description:
13 Memory Tone / Pulse Switchable Dialer with Save Function
Manufacturer:
Winbond
Datasheet:
Part Number:
Description:
14-memory tone/pulse switchable dialer with handfree and lock functions
Manufacturer:
Winbond
Datasheet:
Part Number:
Description:
10-memory tone/pulse dialer with save function
Manufacturer:
Winbond
Datasheet:
Part Number:
Description:
23-flash memory tone/pulse dialer with handfree, lock and hold functions
Manufacturer:
Winbond
Datasheet: