Anritsu 683XXB, 682XXB manual Analog, Instruction

FUNCTIONAL	682XXB/683XXB
DESCRIPTION	MAJOR SUBSYSTEMS

Serial Data

			Serial Data
	Serial Data	10 MHz REF OUT
		Real Panel BNC
	A3		10 MHz	A4
			500 MHz
	Reference			Coarse
	Loop		500 MHz	Loop
			(To Down
			Converter)
	10 MHz REF IN		Frequency
	Rear Panel BNC		Synthesis
			YIG Loop Error
A	10 MHz
	HI-STAB
	XTAL OSC
	(Option)

	10 MHz	A5
		Fine
		Loop
219.5 - 245 MHz
A7
YIG	21.5 - 40 MHz
Loop

Sampled

2 - 20 GHz

RF

10 MHz (To A6) 26 MHz (To A8)

A11 FM

WIDE FM

A13

YIG

Driver

FM IN Front Panel BNC FM IN Rear Panel BNC

Internal FM (From A8)

FM

Main

Bias

Switched Filter Assy
3.3 GHz LPF
5.5 GHz LPF	0.01 - 20 GHz
8.4 GHz LPF	20 GHz LPF
8.

Switched Doubler Module
20 - 25 GHz	0.01 -
25 - 32 GHz	40 GHz
x 2
32 - 40 GHz

	RF Deck
Directional	110 dB
Coupler
	Step
	Attenuator
	(Option)

RF Output 0.01 - 40 GHz

				2 - 20 GHz
				YIG
	Freq	Freq		Oscillator
	Band	Tuning
	Select
B
	A12		Freq Band
			Select (To A14)
	Analog
			Analog
C	Instruction
			Instruction
Pulse Video / Pulse Sync (To Rear Panel)
Pulse Trigger In
IN Front Panel BNC			A6	Pulse
			Pulse
10 MHz (From A5)		Generator		400 KHz (To A18)
D	Serial Data			Sample / Hold
Rear Panel Signals
	A8	FM Out
		AM Out
26 MHz	Function
			FM (To A11)
(From A5)	Generator	AM
Data and Address Bus
E
(Continued From Sheet 1)

5
GHz LPF	13.5 GHz LPF

		6.51 - 8.5 GHz	Switch Control
Modulator	Pulse	Down Converter Assy	0.01 - 2 GHz
Control
		500 MHz
		(From A3)
			Modulator Control
ALC/AM/Pulse			Detected
Modulation		Sample / Hold	0.01 - 2 GHz RF
			Rear Panel EXT ALC IN
		EXT ALC IN Front Panel BNC	Rear Panel AM IN
		AM IN Front Panel BNC	Internal AM

Bias	Switch
	Control

Frequency
Band Select	A14
(From A12)	SDM, SQM
	Driver

A9

PIN

Control

ALC

Detected

2 - 40 GHz RF

A10

ALC

Step

Attenuator

Control

Figure 2-1.Block Diagram of a Typical 682XXB/683XXB Synthesized Signal Generator (Sheet 2 of 2)

682XXB/683XXB MM 2-7