mc44353 Freescale Semiconductor, Inc, mc44353 Datasheet - Page 7

• Manufacturer Part Number: mc44353
• Description: Multi.standard Pal/ntsc Modulator
• Manufacturer: Freescale Semiconductor, Inc

AUDIO CHARACTERISTICS
NOTE:
MOTOROLA ANALOG IC DEVICE DATA
Audio input level AM Step 3, (SECAM)
Audio input level FM Step 3
Audio input Level FM
Audio input level FM Step 3
Audio input Level FM
Audio input resistance
Audio Frequency response
Audio Distortion FM (THD only)
Audio Distortion AM (THD only)
Audio S/N with Sync Buzz FM
Audio S/N with Sync Buzz AM
Sound/Picture ratio Step 3 (8 steps of 1.0
Sound/Picture ratio Step 5 (2 settings, see
dB, see table P/S Ratio – MC44353/4
only)
table P/S Ratio – MC44355 only)
fs = 6.5 MHz, (for 8 steps see Table 4 –
fs = 5.5, 6.0 or 6.5 MHz, (for 8 steps see
fs = 5.5, 6.0 or 6.5 MHz (MC44355 Only)
fs = 4.5 MHz (NTSC), (for 8 steps see
fs = 4.5 MHz (NTSC) (MC44355 Only)
Minimum
Minimum
Maximum
MC44353 Only)
table 4 – MC44353/4 Only
table 4 – MC44353/4 Only
1. The frequency dependent specifications are greatly influenced by the PCB layout in the application. These specifications have all been measured
using a Motorola application layout and circuit similarly as shown in Figures 19 and 21. The reference number for ordering this evaluation board
is MC44350EVK.
Characteristic
60
55
50
45
21
24 27 30 33 36 39 42 45 48 51 54 57 60 63 66 69
MC44353 MC44354 MC44355
for 85% AM modulation of sound
subcarrier
f
for +/– 40 kHz deviation using
specified pre–emphasis circuit
specified pre–emphasis circuit
(FM), Audio frequency= 1.0 kHz
(FM), Audio frequency= 1.0 kHz
f
for 20 kHz deviation using
specified pre–emphasis circuit
(FM), Audio frequency= 1.0 kHz
at 15 kHz
–3.0 dB; ref 1.0 kHz; using
specified pre–emphasis circuit
–1.5 dB; ref 1.0 kHz; using
specified pre–emphasis circuit
@ 1.0 kHz; 100% mod ( 50 kHz
No Video
@ 1.0 kHz; 85% mod, No Video
See Figure 8
Ref 1 khz; 85% mod; Video input
EBU color bar 75%; Audio BW 40
Hz to 15 kHz – Weighing filter
CCIR 468–2
Step 3 (typ 80%) PAL & Step 1
(typ 80%) SECAM Video Mod
depth
p
b
20 kH d
/ 40 kH d
Figure 8. Audio Signal to Noise
i
;
Test Conditions
p
Maximum Specification Limit
i i
Channel Number
p
Typical Performance
i i
;
i
g
i
Min
240
240
155
240
155
30
15
45
13
11
–
–
–
–
–
Figure 8
14.5
16.5
Typ
290
305
195
305
195
0.4
1.5
50
50
–
–
–
Figure 8
Max
340
370
235
370
235
2.5
75
40
60
18
20
–
2
–
mVrms
mVrms
mVrms
mVrms
mVrms
Unit
kHz
k
Hz
Hz
dB
dB
dB
dB
%
%
Type
MHz
MHz
MHz
B @
B @
B @
6.5
5.5
5.5
D
D
B
D
D
D
C
D
C
D
B
B
7