HP 5340A Service Manual

Model 5340A
Theory of Operation
Figure 4
- 32. Presettable Decade Counter/Latch 1820 - 0751
DATA INPUTS CLOCK
Vcc CLtAR OD OB 1
COUNT Q , C A , OA CLOCK GND
LOAD
9
DATA INPUTS
2
asynchronous input Low inpul 10 clear -1s OA
08 Q and OD low
1
4 - 73. EECL Differential Amplifier/Limiter 1820-0754
4 - 74. The differential amplifier/limiter (Figure 4 - 33) can be used for differential or single - ended
amplification, balanced to unbalanced transformation or vice
- versa, RF to EECL conversion,
and Schmitt trigger circuits. The 1820
- 0754 has lOOQ output impedances.
Figure 4
- 33. EECL Differential Amplfier/Limiter 1820 - 0754
vcc RA
93
1 6
Vee FA
NC NC NC NC NC NC NC Vcc
- 24

HP 5340A Specifications

General

Brand	HP
Model	5340A
Category	Cash Counter
Language	English