MC44BS373CAEF Freescale Semiconductor, MC44BS373CAEF Datasheet - Page 27

• Manufacturer Part Number: MC44BS373CAEF
• Description: AUDIO VIDEO INTERGRATION MOD
• Manufacturer: Freescale Semiconductor

Specifications of MC44BS373CAEF

• Applications: *
• Mounting Type: Surface Mount
• Package / Case: 16-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Loop filter equation:
C2, added to minimize glitches, is usually set to one tenth the size of C1. For example:
Q depends on the desired frequency response. Choosing Q = 0.7 as a starting point, then R = 8.5 KΩ. The
resistance acts directly on the factor quality and can be adjusted to create a peak on the low-frequency range.
It is recommended that the value of R be adjusted experimentally depending on the application and
requirements.
16 High Speed I
16.1 Specification Conditions
Each of the characteristics listed in Table 27 and Table 28 is classified as one of the following types:
See Section 14, “Characterization Measurement Conditions,” for each C-type parameter.
Unless otherwise specified, V
•
•
•
•
•
•
•
•
•
•
ω
Kpd = 1-µA phase detector current
Kosc = 5 MHz/V sound oscillator slope. (In fact, Kosc = 40 MHz/prescaler divider = 8.) This
provides 5 MHz/V.
N = Sound divider ratio
Q = quality factorvR
Fref = 31.25 kHz → N = 5.5 MHz / 31.25 kHz = 176
Assuming C1 = 1 µF, then
A—100% tested
B—100% correlation tested
C—Characterized on samples
D—Design parameter
o = 3-dB cutoff frequency
ω
o
=
2
CC
C Compatible Bus
Kpd
----------------------------- -
= 5.0 V, TA = 25
N
ω
o = 168 rad, and Fo = 27 Hz
×
×
MC44BS373CA Data Sheet
Figure 10. PLL Loop Filter
R
C1
Kosc
,
Q
°
C.
=
C2
------------------------------ -
R
×
C1
C1
1
×
ω
o
,
High Speed I2C Compatible Bus
with