W6691CD WINBOND [Winbond], W6691CD Datasheet - Page 23

• Manufacturer Part Number: W6691CD
• Description: ISDN S/T Interface Transceiver
• Manufacturer: WINBOND [Winbond]

Preliminary W6691
resistors protect the device inputs, while the 10 k
resistors (1.8 k
+8.2 k
) limit the peak current in
impedance tests. The diode bridge is used for overvoltage protection.
2:1
5-10
SX1
100
GND
VDD
5-10
SX2
Fig.7.3 External Transmitter Circuitry
Publication Release Date: Sep 2001
23
Revision 1.1