HP 70427A User Manual page 197

Advanced Hardware Control
To Select a Multiplexer (Voltmeter Monitor Point)
Table 8-6 A7A2 600 MHz Reference Loop
Latc
Bit Bit Weight
h
2 7 128
6 64
5 to 32 to 8
3
2 to 4 to 1
0
3 0 1
8-12 HP 70427A/HP 70428A User's Guide
Bit Mnemonic
SWEEP ENABLE
SWEEP
SPEED-UP
MUX_4,2,1
BW_4,2,1
00L INTERRUPT
Bit Description
*Power-on/Reset State
*0: Sweep to lock enabled
1: Sweep to lock disabled
*0: Sweep to lock speed up enabled
1: Sweep to lock speed up disabled
*0: Out of lock interrupt
1: Tune line voltage
2: Beat-note voltage
3: Sweep voltage
4: Integrator output
5: Ground
6: Switched +15v supply
7: Switched –10v supply
0: 4 KHz PLL bandwidth
*1: 10 KHz PLL bandwidth
2: 17 KHz PLL bandwidth
3: 30 KHz PLL bandwidth
4: Tune input
5: Ground
6.Ground
7: Ground
0: 600 MHz PLL out of lock
1: 600 MHz PLL locked