MH89793 Mitel, MH89793 Datasheet
MH89793
Available stocks
Related parts for MH89793
MH89793 Summary of contents
Page 1
... The device is suitable for both 120R and 75R applications, by linking external pins. By combining the MH89793 with Mitel’s E1 framer, the MT9079, a cost effective and efficient interface to E1 lines can be built. TZA1 TZA2 TZA3 TZB1 ...
Page 2
... MH89793 Pin Description Pin # Name 1 RLA Received Line A (Input). The A wire or Tip connection of the E1 receive line is connected to this pin. 2 RLB Received Line B (Input). The B wire or Ring connection of the E1 receive line is connected to this pin. 3 TLA Transmit Line B (Output). The A wire or Tip connection of the E1 receive line connected to this pin ...
Page 3
... Receive Impedance Select. This pin is connected to pin 16 RZA to select 75 impedance. For 120 Functional Description The MH89793 digital trunk interface which when used with an approved framer will conform to CCITT recommendation G.703 for PCM30 and I.431 for the ISDN. The functions provided include line driver and receiver circuitry, inductorless clock recovery, and loss of signal indication ...
Page 4
... DSTi 2 TxA DSTo 31 TxB F0i 26 C4i 32 E8Ko MT9079 8-15 D0-7 18-22 RxA AC0-4 23 RxB R IRQ Figure 3a - Application Circuit for 75 4-232 +5 MH89793 TxA 42 16 TxB 13 TZA1 9 TZA2 7 TZA3 8 TZB1 10 TZB2 27 RZA 28 RZB 30 23 RxA 29 22 RxB 27 21 E2o E2i 31 Foi ...
Page 5
... Figure 3b - Application Circuit for 120 +5 MH89793 TxA RLA 42 16 TLA TxB TLB 13 TZA1 9 RLB TZA2 7 TZA3 TZD1 8 TZB1 TDZ2 10 TZB2 27 TZC1 RZA 28 RZB TZC2 30 23 RxA 29 22 RxB LOS 27 21 E2o 31 26 MT9042 MH89793 1 3 NETWORK 4 CONNECTOR Operation 4-233 ...
Page 6
... MH89793 0.23 Max (5.9 Max) 0.063 Max (1.6 Max) * 0.050 Typ 0.10 + 0.005 (1.27 Typ) (2.54 + 0.12) Notes: 1) Not to scale 2) Dimensions in inches). 3) (Dimensions in millimetres). *Dimensions to centre of pin. Figure 4 - Mechanical Data for 28 Pin Surface Mount Hybrid Figure 5 - Recommended Footprint for 28 Pin Surface Mount Hybrid 4-234 0.37 Max (9.5 Max) 0.08 Typ (2 Typ ...
Page 7
... Not to scale 2) Dimensions in inches). 3) (Dimensions in millimetres). *Dimensions to centre of pin. Figure 6 - Mechanical Data for 28 Pin DIL Hybrid 0.23 Max (5.9 Max) 0.063 Max(1.6 Min) * 0.26+0.015 (6.6+0.4) 0.050 Typ (1.27 Typ) 1.42 Max (36.1 Max) 1 MH89793 AAAA AAAA AAAA AAAA AAAA AAA AAAA AAAA AAAA AAAA AAAA AAA AAAA ...
Page 8
... MH89793 Notes: 4-236 Preliminary Information ...