MC12098
Figure 1. MC12098 Block Diagram
VREF ≈ 2.0 V @ VCC = 3.0 V
VREF ≈ 3.5 V @ VCC = 5.0 V
VCC
VREF
5000 Ω
5000 Ω
IN
÷8192
IN
GND
11 kΩ
VCCO
OUT
GNDO
Figure 2. AC Test Circuit
C3
SINE WAVE GENERATOR
C1
VCC VCCO
IN
50 Ω
C2
IN
OUT
GNDO GND
CL
VCC = 2.7 to 5.5 V
EXTERNAL COMPONENTS
C1 = C2 = 1000 pF
C3 = 0.1 µF
CL = 12 pF (Including Scope and Jig Capacitance)
2
MOTOROLA RF/IF DEVICE DATA