MC33411B Motorola, MC33411B Datasheet - Page 27

• Manufacturer Part Number: MC33411B
• Description: (MC33411A/B) ANALOG CORDLESS PHONE BASEBAND
• Manufacturer: Motorola

MOTOROLA RF/IF DEVICE DATA
1000
–2.0
–4.0
100
8.0
6.0
4.0
2.0
5.0
4.0
3.0
2.0
1.0
16
14
12
10
10.237
10
0
0
10
0
Figure 39. Reference Oscillator Startup Time
V CC = 3.6 V
T A = 25 C
10.24 MHz, 10 pF
Load Capacitance
Crystal
V CC = 3.6 V
T A = 25 C
12
versus Total ESR – Inactive to Rx Mode
10.238
50
Crystal Load Capacitance (C1 = C2)
Open Loop Gain versus Frequency
Figure 41. Maximum ESR versus
14
Figure 37. Reference Oscillator
CRYSTAL LOAD CAPACITANCE (pF)
16
100
10.239
f, FREQUENCY (MHz)
18
2.048 MHz
13 pF
TOTAL ESR ( )
150
F ref out
20
10.240
16
5.12 MHz
22
200
F ref in
15
13 pF
10.241
24
250
26
10.242
28
300
30
MC33411A/B
10.243
350
32
–100
100
–20
–40
–60
–80
8.0
4.0
10.237
70
60
50
40
30
20
10
80
60
40
20
20
16
12
0
0
0
5.0
0
Figure 42. Optimum Values for C1, C2 versus
Equivalent Required Parallel Capacitance
13 pF
Open Loop Phase versus Frequency
10.238
50
F ref out
10
16
Figure 38. Reference Oscillator
Figure 40. Reference Oscillator
Open Loop Gain versus ESR
CRYSTAL LOAD CAPACITANCE (pF)
100
F ref in
15
10.239
f, FREQUENCY (MHz)
15
13 pF
TOTAL ESR ( )
150
10.240
20
200
10.241
25
V CC = 3.6 V
T A = 25 C
10.24 MHz, 10 pF
Load Capacitance
Crystal
250
V CC = 3.6 V
T A = 25 C
10.242
30
300
27
10.24
350
35