mc44353 Freescale Semiconductor, Inc, mc44353 Datasheet

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mc44353

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

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Advance Information
PLL Tuned UHF Audio/Video
Modulator ICs for PAL, SECAM
and NTSC TV Systems
MC44353 – Multi–Standard Modulator IC
MC44354 – PAL/NTSC Modulator IC
MC44355 – PAL/NTSC Modulator IC with
MC44355 –
set–top boxes, video games, etc. An on–chip high speed I 2 C compatible bus
receiver is included and is used to set the channel, tuned by a PLL over the
full range in the UHF bands. The modulator incorporates a sound subcarrier
oscillator, using a second PLL to derive 4.5, 5.5, 6.0 and 6.5 MHz carrier
frequencies, selectable by the bus.
amplitude modulation (MC44353 only) is possible. A control bit (MC44353
only) is used to select AM sound with positive RF modulation (system L). The
level of the sound carrier with respect to the vision carrier and the modulation
depth of both sound and vision may be adjusted by means of the bus. In
addition, an on–chip video test pattern generator may be switched in with a
1.0 kHz audio test signal.
This document contains information on a new product. Specifications and information herein
are subject to change without notice.
MOTOROLA ANALOG IC DEVICE DATA
MC44353DTB
MC44353DW
MC44354DTB
MC44354DW
MC44355DTB
MC44355DW
Voltage
(8 Steps of 1.0 dB)
6.5 MHz)
These modulator circuits are intended for use in VCRs, satellite receivers,
For the sound, either frequency modulation with pre–emphasis or
Channel 21 through 69 UHF Operation (471 MHz to 855 MHz)
On–Chip Low Power Operational Amplifier for Direct Tuning Varactor
Single–Ended Output for Low Cost and Ease of Interface
Low External Component Count
High Speed I 2 C Bus Compatible
Programmable Video Modulation Depth (8 Steps of 2.5%)
Programmable Picture/Sound Carriers Ratio and Audio Sensitivity
On–Chip Programmable Sound Subcarrier Oscillator (4.5 MHz to
On–Chip Video Test Pattern Generator with Sound Test Signal (1.0 kHz)
V CC Standby Mode (Typ 500 A)
Transient Output Inhibit During PLL Lock–Up at Power–On
Device
Fixed Video Modulation Index
ORDERING INFORMATION
Temperature Range
T
T
T A = –20 to +80 C
T A = –20 to +80 C
Operating
20
20
80 C
80 C
TSSOP–20
TSSOP–20
TSSOP–20
Package
SO–20L
SO–20L
SO–20L
Motorola, Inc. 1998
Osc Gnd
Osc Gnd
Snd Tun
Pre–Em
MULTI–STANDARD
Op Out
Amp In
Snd Fil
V CCD
MODULATOR ICs
MC44353
MC44354
MC44355
AND PAL/NTSC
Osc
Osc
PIN CONNECTIONS
SEMICONDUCTOR
TECHNICAL DATA
Order this document by MC44353/D
PLASTIC PACKAGE
PLASTIC PACKAGE
20
20
10
DTB SUFFIX
1
2
3
4
5
6
7
8
9
(TSSOP–20)
DW SUFFIX
CASE 751D
CASE 948E
(SO–20L)
(Top View)
1
1
20
19 SDA
18 SCL
17 Mod Gnd
16 V CC Mod
15 RF Out
14 Mod Gnd
13 Video In
12 V CCA
11
Audio In
Xtal
Rev 0
1

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mc44353 Summary of contents

Page 1

... For the sound, either frequency modulation with pre–emphasis or amplitude modulation (MC44353 only) is possible. A control bit (MC44353 only) is used to select AM sound with positive RF modulation (system L). The level of the sound carrier with respect to the vision carrier and the modulation depth of both sound and vision may be adjusted by means of the bus. In addition, an on– ...

Page 2

... Figure 1. MC44353 Simplified Block Diagram V CCA Mod Standby 15 RF Out 8 17 Mod Gnd 30 18 SCL High 19 Speed Bus SDA Modulator Section PLL Section 20 Xtal Ref Osc MAXIMUM RATINGS (Note 1) Rating Supply Voltage Operational Amplifier Output Voltage Operating Ambient Temperature Storage Temperature NOTES: 1 ...

Page 3

... SDA/SCL Low Input Level SDA/SCL High Input Level SDA/SCL Input Current for Input Level from 0 0 SDA/SCL Input Level SDA/SCL Capacitance ACK Low Output Level (sinking 3.0 mA) ACK Low Output Level (sinking 15 mA) MOTOROLA ANALOG IC DEVICE DATA MC44353 MC44354 MC44355 Symbol Min 2.0 2.0 – 1.0 t_sup_del ...

Page 4

... SDA Fall Time at 3.0 mA sink and 400 pF Load SDA/SCL Rise Time SCL Fall Time Pulse Width of Spikes Suppressed by the Input Filter Stop SDA SCL T su;sto T hd;sta SDA SCL 4 MC44353 MC44354 MC44355 (continued) (Over Functional Temperature Range – 5.0 V) Symbol Min 0 T buf 200 T su;sta 500 T hd;sta 500 T su ...

Page 5

... AMD0–2: Audio Modulation Sensitivity, see table entitled AUDIO MODULATION SENSITIVITY (for MC44355 AMD0–2 are Don’t Care). 6. PSD0–2: Picture to Sound carrier ratio, see table entitled PICTURE to SOUND CARRIER RATIO (for MC44355 PSD0–1 are Don’t Care). 7. SysL: System L enable (selects AM sound and positive video modulation, MC44353 only). 8. TPEN: Test pattern enable (picture and sound). ...

Page 6

... PAL Video Modulation Depth Step 3 SECAM Video Modulation Depth Step 5 (MC44353 Only) NOTES: 1. The circuit is equipped with a ’soft clip’ function. The Video Modulation depth is measured for a 1.0 V CVBS input level, giving modulation depth MDA; then the same measurement is carried out for an input level of 1.5 V CVBS , giving modulation depth MDB. The Peak White Clip is defined as 100*(MDB)/(MBA) ...

Page 7

... 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 dB, see table P/S Ratio – MC44353/4 only) Sound/Picture ratio Step 5 (2 settings, see table P/S Ratio – MC44355 only) NOTE: 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 ...

Page 8

... Typical Performance 0 –10 –20 50 150 250 350 450 550 650 750 850 950 1050 1150 1250 Frequency MHz 8 MC44353 MC44354 MC44355 Test Conditions Min See Note 1 and Figure 9. Figure 9 See Note 1 and Figure 10. Figure 10 Using specified circuit – Using specified circuit ...

Page 9

... compatible bus. An on–chip video test pattern generator with an audio test signal is also included. The MC44353 is designed to operate as a multi–standard modulator and can handle the systems B/G, D/ and N with the same external circuit components. The basic elements of the circuit are shown in Figure 1 ...

Page 10

... L, the subcarrier is frequency modulated with the audio signal. For system L, amplitude modulation is employed. The level of audio at the input needed to give the 10 MC44353 MC44354 MC44355 maximum permissible modulation depth (50 kHz FM deviation, 85% AM depth), may be adjusted under bus control. UHF Oscillator The UHF oscillator is designed to operate over a range of 450 to 860 MHz ...

Page 11

... Switching in mode 0d will reset the transient delay counter, which will time out at an accelerated rate of 64 times the normal rate. MOTOROLA ANALOG IC DEVICE DATA MC44353 MC44354 MC44355 Sound Section Test Modes The Sound PLL is tested in a similar fashion, and responds to States 6 and 7 by placing the output of the sound PLL programmable divider on the upper current source ...

Page 12

... NOTES: 1. Video modulation depth bits VMD2–0 are located in C0 bits SECAM values are approximately 5% higher than PAL values. 12 MC44353 MC44354 MC44355 Audio Input for AM PAL/NTSC SECAM (MC44353/4) (MC44353 Only) 420 mVrms 405 mVrms 375 mVrms ...

Page 13

... Snd Fil 8 Phase/Freq. detector charge pump output Snd Tun 9 Sound carrier oscillator L/C tuned circuit Pre–Em 10 Frequency selective filter to shape sound modulation depth. 24.5 k MOTOROLA ANALOG IC DEVICE DATA MC44353 MC44354 MC44355 Figure 17. Pin Circuit Schematic 132 k 1 ...

Page 14

... D1 and D2 are hyper–abrupt varactor. Minimum capacitance ratio between 1.0 and 4 C1/C4.5 = 5.6 to cover the full frequncy range 1 min) Modifications to the application layout (Figures 19 through 21) will have an effect on the overall application performances. The most sensitive areas are around the UHF 14 MC44353 MC44354 MC44355 Figure 18. Typical Application R10 240 k MC44353 1 ...

Page 15

... Figure 19. PCB Layout for SO–20L (Top Layer) C10 C12 D1 C11 MOTOROLA ANALOG IC DEVICE DATA MC44353 MC44354 MC44355 Scale 2:1 C14 C15 C20 C21 C17 R5 C16 R6 C13 R11 CCT Gnd Gnd SCL ...

Page 16

... Figure 20. PCB Layout for TSSOP–20 (Top Layer) C10 D1 C11 MC44353 MC44354 MC44355 Scale 2:1 C12 C14 C15 C16 C17 R6 C13 R11 CCT Gnd Gnd SCL SDA Gnd R10 C20 ...

Page 17

... Figure 21. PCB Layout for SO–20L and TSSOP–20 used for Characterization (Bottom Layer) MOTOROLA ANALOG IC DEVICE DATA MC44353 MC44354 MC44355 Scale 2:1 17 ...

Page 18

... PLANE –A– –B– 20X 0.010 (0.25 18X K 18 MC44353 MC44354 MC44355 OUTLINE DIMENSION DTB SUFFIX PLASTIC PACKAGE CASE 948E–02 (TSSOP–20) ISSUE Í Í Í Í Í Í Í Í ...

Page 19

... Motorola was negligent regarding the design or manufacture of the part. Motorola and Opportunity/Affirmative Action Employer. MOTOROLA ANALOG IC DEVICE DATA MC44353 MC44354 MC44355 are registered trademarks of Motorola, Inc. Motorola, Inc Equal 19 ...

Page 20

... US & Canada ONLY 1–800–774–1848 51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852–26629298 – http://sps.motorola.com/mfax/ HOME PAGE: http://motorola.com/sps/ 20 MC44353 MC44354 MC44355 JAPAN: Nippon Motorola Ltd.: SPD, Strategic Planning Office, 141, 4–32–1 Nishi–Gotanda, Shagawa–ku, Tokyo, Japan. 03–5487–8488 ASIA/PACIFIC: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park, Mfax is a trademark of Motorola, Inc ...

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