MC44829 Datasheet, PDF (4/10 Pages) Motorola, Inc – TV AND VCR I2C PLL TUNING CIRCUIT WITH 1.3 GHz PRESCALER AND MIX/OSC DECODER

MC44829
Figure 1. Typical Prescaler Input Sensitivity
5.0
–5.0
Guaranteed Operating Area
–15
–25
–35
–45
0
200 400 600 800 1000 1200 1400
RF In (MHz)
NOTE: VCC = 4.5 to 5.5 V, TA = – 20° to +80°C
HF CHARACTERISTICS (See Figure 1)
Characteristic
DC Bias
Input Voltage Range
50–950 MHz
950–1300 MHz
Pin
Min
Typ
Max
Unit
3, 4
–
1.6
–
V
mVrms
3, 4
10
–
315
3, 4
50
–
315
Figure 2. RF Sensitivity Test Circuit
I2CBusController ÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇ
10, 11
+5.0 V
5
VCC1
3
HF In
MC44829
4
RF Generator
(50 Ω)
1.0 nF 1.0 nF
50 Ω
2
8
7
B5 _{4.0 k}
B6
4.0 kΩ
+12 V
Frequency Counter
Device is in test mode, B5 and B6 are “On”, B4 is “Off”.
Sensitivity is the level of the HF generator of 50 Ω load.
4
MOTOROLA ANALOG IC DEVICE DATA