MC44BC375UEFR2 Freescale Semiconductor, MC44BC375UEFR2 Datasheet - Page 7

• Manufacturer Part Number: MC44BC375UEFR2
• Description: IC A-VHF MODULATOR 16-SOIC
• Manufacturer: Freescale Semiconductor
• Type: Modulatorr

Specifications of MC44BC375UEFR2

• Applications: Set-Top Boxes
• Mounting Type: Surface Mount
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: MC44BC375UEFR2TR

9 Video Characteristics
10 Audio Characteristics
All audio measurement use specified pre-emphasis circuit.
11 Characterization Measurement Conditions
Device default configuration unless otherwise specified:
RF Inputs / Output into 75ohm Load using a 75 to 50 ohm transformation.Video Input 1V pk-pk.Audio
pre-emphasis circuit engaged.
Video bandwidth
Video input level
Video input current
Video input impedance
Video S/N
Differential Phase
Differential Gain
Luma/Sync ratio
Video modulation depth
Peak White Clip
Picture to Sound ratio
Picture to Sound ratio
difference
Audio FM Modulation Depth
Audio input resistance
Audio Frequency response
Audio Distortion FM (THD
only)
Audio S/N with Sync Buzz FM
•
•
•
Parameter
Sound subcarrier frequency = 5.5Mhz
Picture-to-sound carrier ratio = 12dB
CH3 & CH4 frequencies
Parameter
Reference 0dB at 100kHz, measured at
5MHz
75Ohm load
Unweighted
Weighted
Input ratio 7.0:3.0
Video input level=1.0 V
Video Modulation Depth for Video=1.4 V
Freescale Semiconductor, Inc.
PSS (Pin2) = HI
PSS (Pin2) =LO
between PSS = HI and PSS = LO
Using specific pre-emphasis circuit - Audio Input: 1Khz @ 205 mVrms
Fs = 4.5 MHz
(100% Modulation = +/- 25 kHz FM Deviation)
Fs = 5.5 MHz
(100% Modulation = +/- 50 kHz FM Deviation)
0dB ref @1kHz
Measure from 50Hz to 15kHz
At 1 kHz and 100% mod (+/- 50 kHz) - No Video
For More Information On This Product,
MC44BC375/U/J/T Technical Data
Test Conditions
Go to: www.freescale.com
Test Conditions
cbvs
cbvs
6.8/3.2
90.5
-1.5
Min
500
49
56
80
—
—
-2.5
Min
1.5
14
12
75
75
45
50
-
Typ
-0.5
+/-1
0.2
52
60
85
95
—
—
—
1
Typ
Video Characteristics
2.0
0.3
16
14
85
85
55
53
-
7.2/2.8
Max
99.5
+/-5
1.5
90
—
—
—
—
1
5
Max
2.5
18
16
95
95
61
+2
1
-
Vcvbs
Unit
deg
KΩ
dB
µA
dB
dB
%
—
%
%
Unit Type
k
dB
dB
dB
dB
dB
%
%
%
Ω
Type
C
D
A
A
C
C
C
C
B
B
B
B
C
C
C
B
B
B
A