Motorola MC44354DW, MC44355DTB, MC44355DW, MC44353DTB, MC44353DW Datasheet

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SEMICONDUCTOR

TECHNICAL DATA

MULTI–STANDARD

AND PAL/NTSC

MODULATOR ICs

DW SUFFIX

PLASTIC PACKAGE

CASE 751D

(SO–20L)

PIN CONNECTIONS

Order this document by MC44353/D

DTB SUFFIX

PLASTIC PACKAGE

CASE 948E

(TSSOP–20)

4 5

8 9

(Top View)

CCD

Osc Gnd

Osc

Snd Fil

Snd Tun

Pre–Em

Audio In

CCA

Video In

Mod Gnd

RF Out

VCC Mod

Mod Gnd

6Osc 7Osc Gnd

SCL

120 2

Amp In Op Out

Xtal

SDA

MOTOROLA ANALOG IC DEVICE DATA

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MC44353 – Multi–Standard Modulator IC MC44354 – PAL/NTSC Modulator IC MC44355 – PAL/NTSC Modulator IC with

MC44355 – Fixed Video Modulation Index

These modulator circuits are intended for use in VCRs, satellite receivers, set–top boxes, video games, etc. An on–chip high speed I2C 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.

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–chip video test pattern generator may be switched in with a

1.0 kHz audio test signal.

• Channel 21 through 69 UHF Operation (471 MHz to 855 MHz)

• On–Chip Low Power Operational Amplifier for Direct Tuning Varactor

Voltage

• Single–Ended Output for Low Cost and Ease of Interface

• Low External Component Count

• High Speed I

C Bus Compatible

• Programmable Video Modulation Depth (8 Steps of 2.5%)

• Programmable Picture/Sound Carriers Ratio and Audio Sensitivity

(8 Steps of 1.0 dB)

• On–Chip Programmable Sound Subcarrier Oscillator (4.5 MHz to

6.5 MHz)

• On–Chip Video Test Pattern Generator with Sound Test Signal (1.0 kHz)

• V

Standby Mode (Typ 500 µA)

• Transient Output Inhibit During PLL Lock–Up at Power–On

ORDERING INFORMATION

Device

Operating

Temperature Range

Package

MC44353DTB

TSSOP–20

MC44353DW

SO–20L

MC44354DTB

–

TSSOP–20

MC44354DW

= –

20° to +80°C

SO–20L MC44355DTB TSSOP–20 MC44355DW SO–20L

This document contains information on a new product. Specifications and information herein are subject to change without notice.

 Motorola, Inc. 1998 Rev 0

MC44353 MC44354 MC44355

MOTOROLA ANALOG IC DEVICE DATA

Figure 1. MC44353 Simplified Block Diagram

Modulator

Section

PLL

Section

7 6

5 4

98131412

18 19

VCC Mod Standby

RF Out

Mod Gnd

SCL

SDA

Xtal

Pre–Em

Audio

Osc Gnd Osc

Osc Osc Gnd

Op Out

CCA

Mod Gnd Video In Snd Fil Snd Tun

CCD

Amp In

MC44353

Peak

White Clip

Clamp

Phase/

Freq Comp

Sound Osc

+ FM Mod

Prog Divider

AM Mod

Video

Modulator

+ Sound Mix

Test Pattern

Generator

High

Speed Bus

UHF

Osc and

Drives

Prescaler

Phase Comp

Prog

Divider

Ref DividerRef Osc

7.8 kHz 976 Hz

TE2TE1

31.25 kHz

Bias

MAXIMUM RATINGS (Note 1)

Rating Symbol Value Unit

Supply Voltage V

7 V Operational Amplifier Output Voltage 36 V Operating Ambient Temperature T

–20 to 80 °C

Storage Temperature T

stg

–65 to 150 °C

NOTES: 1. Maximum ratings are those values beyond which damage to the device may occur. For

functional operation, voltages should be restricted to the Recommended Operating Conditions.

2.ESD data available upon request.

ELECTRICAL CHARACTERISTICS (Parameter Type: A–100% Tested, B–100% Correlation T ested, C–Characterized on

Samples. D–Design Parameter, VCC = 5.0 V, TA = 25C, Video input 1.0 Vpp, 10 step greyscale. Step 3 [typ. 80%] modulation depth for PAL; Step 5 [typ 90%] modulation for SECAM L; P/S ration Step 3 [typ 14.5 dB]. RF output into 75 Ω load. Unless otherwise noted.) (Specifications only valid for envelope demodulation.)

Characteristic

Symbol Min Typ Max Unit Type

Operating Supply Voltage Range V

CCA,VCCD

VCC Mod

4.5 5.0 5.5 V D

Analog Section Supply Current (VCC = 5.0 V) I

CCA

26 33 39.5 mA A

Digital Section Supply Current (VCC = 5.0 V) I

CCD

24 32 39 mA A Modulator O/P Section Supply Current (VCC = 5.0 V) ICC Mod 6.0 9.0 11.5 mA A Total Supply Current (VCC = 5.0 V) I

56 74 90 mA A During Standby VCC Mod 4.0 – 5.5 V D During Standby (with Data Retension: VCC Mod = 5.0V) ICC Mod – 0.5 1.0 mA B Operational Amplifier Output Voltage (through R

pullup

) – 30 35 V B Operational Amplifier Output Current (with Rpullup = 560 kΩ – 56 100 µA B Test Pattern Sync Pulse Width T

4.0 4.7 5.6 µs A

MC44353 MC44354 MC44355

MOTOROLA ANALOG IC DEVICE DATA

ELECTRICAL CHARACTERISTICS (continued) (Parameter Type: A–100% Tested, B–100% Correlation T ested, C–Characterized on

Characteristic TypeUnitMaxTypMinSymbol

UHF Comparator Pump Current (Note 1) 2.0 4.0 6.0 µA A Sound Comparator Pump Current (Note 2) 2.0 3.8 5.6 µA A Op–Amp Input Current – – 20 nA A Oscillator Stability – negative resistance 1.0 – – kΩ D Delay V

CCA/D

to VCC Mod Application (See Figure 2) t_sup_del 0 – – ns D

CCA/D

& VCC Mod Duration for Standby Mode Function

(See Figure 2)

t_sup_min 30 – – ms D

NOTES: 1. Current sources driven by the UHF phase comparactor, that are connected to Pin 1.

2.Current sources driven by the phase sound comparator, that are connected to Pin 8.

CCA/D

CCmod

5.0 V

0 V

t_sup_min

t_sup_del

time

0 V

5.0 V

Figure 2. Initial Power–On and Standby Mode VCC Timing Diagram

For proper operation of internal reset functions, V

CCA

and

CCD

(which must be applied simultaneously) may not be

applied after V

CCmod

Normally, all VCC lines will come up at the same time. However, due to the possibility of a Standby VCC to be applied to the V

CCmod

pin, care should be ensured that

CCmod

is not applied before V

CCA

and V

CCD

(which must be tied together). See the timing diagram and DATA RETENTION function description.

Note that V

CCA/D

and V

CCmod

must be activated above 4.5 V for a least 30 msecs before the device can operate correctly in Standby Mode.

HIGH SPEED I2C COMPATIBLE BUS CHARACTERISTICS

(Over Functional Temperature Range – VCC = 5.0 V)

Characteristic

Symbol Min Typ Max Unit Type

SDA/SCL Output Current at 0 V – – 10 µA A SDA/SCL Low Input Level V

– – 1.5 V B

SDA/SCL High Input Level V

3.0 – – V B

SDA/SCL Input Current for Input Level from 0.4 V to 0.3 V

–5.0 – 5.0 µA C

SDA/SCL Input Level 0 – VCC

+ 0.3

V D

SDA/SCL Capacitance C

– – 10 pF C ACK Low Output Level (sinking 3.0 mA) – 0.3 1.0 V A ACK Low Output Level (sinking 15 mA) – – 1.5 V C

MC44353 MC44354 MC44355

MOTOROLA ANALOG IC DEVICE DATA

HIGH SPEED I2C COMPATIBLE BUS CHARACTERISTICS

(continued) (Over Functional T emperature Range – VCC = 5.0 V)

Characteristic TypeUnitMaxTypMinSymbol

Bus Clock Frequency 0 – 800 kHz C Bus Free Time Between Stop and Start T

buf

200 – – ns C

Setup Time for Start Conditions T

su;sta

500 – – ns C

Hold Time for Start Condition T

hd;sta

500 – – ns C

Data Setup Time T

su;dat

0 – – ns C Data Hold Time T

hd;dat

0 – – ns C Setup Time for Stop Condition T

su;sto

500 – – ns C

Hold time for Stop Condition T

hd;sto

500 – – ns C

Acknowledge Propagation Delay T

ack;low

– – 300 ns C SDA Fall Time at 3.0 mA sink and 130 pF Load – – 50 ns C SDA Fall Time at 3.0 mA sink and 400 pF Load – – 80 ns C SDA/SCL Rise Time – – 300 ns C SCL Fall Time – – 300 ns C Pulse Width of Spikes Suppressed by the Input Filter T

– – 50 ns C

0 V

Not Defined

buf

hd;dat

su;dat

su;stoThd;sta

ack:low

Start

Stop

su;sta

Chip address

hd;sto

Start

Stop

SDA

SCL

SDA

SCL

SDA

SCL

ACK

Figure 3. Timings Definition

Figure 4. Levels Definition

MC44353 MC44354 MC44355

MOTOROLA ANALOG IC DEVICE DATA

High Speed I2C Compatible Bus Format

Bit 7 Bit 0 ACK

CA – Chip Address 1 1 0 0 1 0 1 0 ACK

C0 – Low Order Bits VMD2 VMD1 VMD0 SFD1 SFD0 TB2 TB1 TB0 ACK C1 – High Order Bits 1 AMD2 AMD1 AMD0 PSD2 PSD1 PSD0 SysL ACK

FL – Low Order Bits N

ACK

FM – High Order Bits 0 TPEN N

ACK

NOTES: 1. C0 and FL: Low Order Bits and C1 and FM: High Order Bits.

2.VDM0–2: Video Mod Depth control bits (for MC44355 VMD0–2 are Don’t Care).

3.SFD0–1: Sound subcarrier frequency control bits.

4.TB0–2 and X1, X0: T est modes bits, see table entitled TEST MODES.

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: T est pattern enable (picture and sound).

9.N0 to N11: UHF frequency programming bits, in steps of 250 kHz.

DataFirst Data Byte (C1 or FM)

Figure 5. High Speed I2C Compatible bus data format

Chip Address ($CA)

SCL

STA

SDA

ACK

ACK ACK

12345678910111213141516171819 4445

STO

MC44353 MC44354 MC44355

MOTOROLA ANALOG IC DEVICE DATA

VIDEO CHARACTERISTICS

Characteristic

Test Conditions Min Typ Max Unit Type

Video Bandwidth (0/–1.0 dB; ref 0 dB @ 100 kHz) 5 - – MHz C Video Input Level – – 1.5 V

CVBS

D Video Input Current – 50 200 nA A Peak White Clip (Note 1) 108 112 116 % B Video Input Impedance Measured at 1.0 kHz (at Pin 13) – 500/4 – kΩ/pF D Video S/N

– Figure 6 Figure 6 dB C

Differential Phase

See Note 2

Figure 7 Figure 7 Figure 7 ° C

Differentical Gain On line CCIR 310, worst from the

first 4 steps out of 5

– 1.0 5 % C

Luma/Sync ratio Input ratio 7.0:3.0 6.8/3.2 – 7.2/2.8 B PAL V ideo Modulation Depth Step 3

76 82 88 % B

SECAM Video Modulation Depth

Step 5 (MC44353 Only)

Programmable in 8 steps of 2.5%

84.5 90.5 96.5 % B

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).

2.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.

–6.0

Channel Number

24 27 30 33 36 39 42 45 48 51 54 57 60 63 66 69

Typical Performance

Maximum Specification Limit

Degrees

Channel Number

24 27 30 33 36 39 42 45 48 51 54 57 60 63 66 69

–8.0

Typical Performance

Maximum Specification Limit

–4.0

–2.0

2.0

4.0

6.0

8.0

Minimum Specification Limit

Figure 6. Video Signal to Noise Figure 7. Differential Phase

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