Voltage References

MC44802A
FIGURE 1a - RIPPLE REJECTION - MEASUREMENT SCHEMATIC
1
Max·
2.8m Vpp
50 Hz
Vtuning
22 k
Bus Controller
18 17
22 k
MC44802A
Loop is locked on any channel
,...----------, VCC1 = 5.0 V
HF Generator
HF Out
FIGURE 1b - HF SENSITIVITY TEST CIRCUIT
Device is in test mode: R2 = 1, R3 = 0 (see Bus Section)
sensitivity is level of HF generator on 50 Q load
(without MC44802A load).
3
Bus
15 14
MC44802A
50 II
FIGURE 2 - PIN 5 INPUT IMPEDANCE (TYP)
B5
11
MOTOROLA LINEAR/INTERFACE ICs DEVICE DATA
9-277
500m Vpp
F : 50 Hz
5.0 V
5.0 V
4.7 k
In
Counter