Description
The MT9173 (DSIC) and MT9174 (DNIC) are functionally identical to the MT9171/72 except for the addition of one feature. The MT9173/74 include a digital output pin indicating the temporal position of the received "SYNC" bit of the biphase transmission. This feature is especially useful for systems such as PCS wireless base station applications requiring close synchronization between microcells.

FEATUREs
• Receive sync output pulse
• Full duplex transmission over a single twisted pair
• Selectable 80 or 160 kbit/s line rate
• Adaptive echo cancellation
• Up to 3km (9173) and 4 km (9174) loop reach
• ISDN compatible (2B+D) data format
• Transparent modem capability
• Frame synchronization and clock extraction
• MITEL ST-BUS compatible
• Low power (typically 50 mW), single 5V supply

APPLICATIONs
• TDD Digital PCS (DECT, CT2, PHS) base stations requiring cell synchronization
• Digital subscriber lines
• High speed data transmission over twisted wires
• Digital PABX line cards and telephone sets
• 80 or 160 kbit/s single chip modem