HP 8568B manual Crystal Filter Bypass Network Configuration

Crystal Filter

Bypass Network

Configuration

Crystal Filter Bypass Network Configuration

The Crystal Filter Bypass Network Configuration shown in Figure 3-94 can be constructed using the parts listed in Iable 3-8 and Table 3-9. Table 3-8 list the parts required for the construction of 21.4 MHz

IF crystal-filter bypass networks used with the A4A4 and A4A8 assemblies. Two 21.4 MHz bypass networks are required. Table 3-9 list the parts required for the construction of 3 MHz IF crystal-filter bypass networks used with the A4A7 assembly. Four 3 MHz bypass networks are required.

21.4 MHz	3 MHz
BYPASS	BYPASS
C A P A C I T O R	CAPACITOR
1 oop,	047 “i

Figure 3-94. Crystal Filter Bypass Network Configurations

lhble 3-8.

Crystal Filter Bypass Network Configuration for

A4A4 and A4A8 (21.4 MHz)

Part Value Qty. CD HP Part Number

Resistor	31.662		2	2	0698-7200
Capacitor	100	pF	2	9	0160-4801
Capacitor	910	pF	2	9	0160-6146
Receptacle	-		4	1	1251-3720

lhble 3-9.

Crystal Filter Bypass Network Configuration for

A4A7 (3 MHz)

1 Fart 1 Value 1 Qty. 1 CD 1 HP Part Number I

Resistor 2.70

Capacitor 0.047 PF

Receptacle -

4

4

8

4

9

1

0683-0275

0170-0040

1251-3720

Adjustments 3-151