1993_Motorola_Linear_Interface_ICs_Vol_2.pdf

Pin
(Max 2.8m V pp)
50Hz
VTuning
MC44B07P (see Block Diagram)
1
2
3
4
5
6,7,8,9
10
11
12
13
14
15
16
MC44817D
1
2
3
4
5
6
7
8
9
10,11,12,13
14
15
16
MC44807/17
Figure 1. Ripple Rejection - Measurement Schematic (MC44807P)
100nF
22k 47nF
Function
Out
100nF I
VCC2
VCCI
HFln
Gnd
BO, Bl ... B3
VCC3
LOCK
En
DA
CL
Xtal
In
DA
CL
Xtal
In
Out
VCC2
VCCI
HFln
Gnd
BO, Bl ... B3
VCC3
LOCK
En
16
MC448D7
+33V Loop is locked on any channel
PIN FUNCTION DESCRIPTION
Description
500mVpp
F = 50Hz
1 5.0V
Operational amplifier output which provides the tuning voltage
Operational amplifier positive supply (33 V)
Positive supply of the circuit (5.0 V)
HF inputs from local oscillator
Ground
Band buffer outputs can drive up to 30 rnA (40 rnA at 0 0 to 80 0 C)
Positive supply for integrated band buffers (12 V)
Lock detector output
Enable input (3·wire Bus)
Data input (3-wire Bus)
Clock input (supplied by the microprocessor via 3-wire Bus)
Crystal input (typ: 3.2 MHz)
Negative operational amplifier input and charge pump
Data input (3-wire Bus)
Clock input (supplied by the microprocessor via 3-wire Bus)
Crystal oscillator (3.2 MHz)
Negative operational amplifier input and charge pump
Operational amplifier output which provides the tuning voltage
Operational amplifier positive supply (33 V)
Positive supply of the circuit (5.0 V)
HF input from local oscillator
Ground
Band buffer outputs can drive up to 30 rnA (40 rnA at 00 to 80aC) Positive supply for integrated band buffers (12 V)
Lock detector output
Enable input (3-wire Bus)
MOTOROLA LlNEARIINTERFACE ICs DEVICE DATA
9-283