YTD428_07 YAMAHA [YAMAHA CORPORATION], YTD428_07 Datasheet - Page 6

• Manufacturer Part Number: YTD428_07
• Description: IDSU ISDN DSU for Terminal Equipment
• Manufacturer: YAMAHA [YAMAHA CORPORATION]

2. BLOCK DIAGRAM
2.1 Internal Block Diagram
YTD428
T ref. pt. I/F section
T ref. pt.
T ref. pt.
receiver
driver
S/T ref. pt. LSI
switch section
YTD418 or
YTD423
Interface
TTL I/F
U ref. pt. I/F section
CT block
LT block
ADC
CT : Circuit Termination
LT : Line Termination
driver control
Amplifier
Peak hold
CT/LT section
U ref. pt.
Variable