mc44bs374t1 Freescale Semiconductor, Inc, mc44bs374t1 Datasheet

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mc44bs374t1

Manufacturer Part Number
mc44bs374t1
Description
Pll Tuned Uhf And Vhf Audio/video High Integration Modulator
Manufacturer
Freescale Semiconductor, Inc
Datasheet

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Advance Information
MC44BS374T1/374T1A
Rev. 1.2 11/2003
PLL Tuned UHF and
VHF Audio/Video High
Integration Modulator
Contents
1Features . . . . . . . . . . . . . . 2
Comparing the
Pin Descriptions . . . . . . . . 3
Functional Overview . . . . . 4
Maximum Ratings . . . . . . . 5
Thermal Ratings . . . . . . . . . 5
Electrostatic Discharge . . . 5
Electrical Characteristics . 6
I2C Bit Mapping . . . . . . . . . 7
I2C Programming . . . . . . . . 8
Modulator High Frequency
Video Characteristics . . . 11
Audio Characteristics . . . 13
Characterization
Modes of Operation . . . . . 20
High Speed I2C Compatible
Pin Circuit Schematics . . 27
Application Diagrams . . . 28
Evaluation Board Schematic
Packaging Instructions . . 31
Marking Instructions31
This document contains information on a product under development. Freescale reserves the right to change or
discontinue this product without notice. © Motorola, Inc., 2003. All rights reserved.
MC44BS374T1/374T1A to
the MC44BC374T1 . . . . . 2
Characteristics . . . . . . 10
Measurement Conditions
14
Bus . . . . . . . . . . . . . . . . 24
and Layout . . . . . . . . . . 29
The MC44BS374T1 and MC44BS374T1A audio and video modulator are for use in VCRs,
set-top boxes, and similar devices. These products are the next generation of the
MC44BC374T1 with the following new features:
Figure 1 shows the pin connections.
• TV output level 82dBuV typical for the MC44BS374T1A, 75 dBuV for the
• 5V and 3.3V compatible I
• Logic Output Port pin (pin 3) available
MC44BS374T1
Freescale Semiconductor, Inc.
For More Information On This Product,
Figure 1. MC44BS374T1 and MC44BS374T1A Pin Connections
Go to: www.freescale.com
SPLFLT
PREEM
AUDIO
XTAL
GND
SDA
LOP
SCL
2
C bus
SO16 pin package
1
2
3
4
5
6
7
8
MC44BS374T1AD,R2
MC44BS374T1D,R2
MC44BS374T1A
MC44BS374T1
16
15
14
13
12
11
10
9
Device
NOTE: For tape and reel, add R2 suffix.
SO16NB Package
GNDD
VCCD
PLLFLT
TVOVCC
TVOUT
GND
VCCA
VIDEO
Ordering Information
Temp Range
0°C to +70°C
0°C to +70°C
Package
SO16NB
SO16NB

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mc44bs374t1 Summary of contents

Page 1

... These products are the next generation of the 1Features . . . . . . . . . . . . . . 2 Comparing the MC44BC374T1 with the following new features: MC44BS374T1/374T1A to the MC44BC374T1 . . . . . 2 • TV output level 82dBuV typical for the MC44BS374T1A, 75 dBuV for the Pin Descriptions . . . . . . . . 3 MC44BS374T1 Functional Overview . . . . . 4 Maximum Ratings . . . . . . . 5 • 5V and 3.3V compatible I Thermal Ratings ...

Page 2

... ESD protection, minimum Comparing the MC44BS374T1 and MC44BS374T1A to the MC44BC374T1 Compared to the MC44BC374T1 devices, the MC44BS374T1/374T1A has the following improvements: • Higher output level for the MC44BS374T1A (82 dBuV versus 74.5 dBuV) • Higher Video signal to noise (+ 3 dB) for the MC44BS374T1A 2 • I C-bus 3.3V compatible • ...

Page 3

... VCCA 11 GND 12 TVOUT 13 TVOVCC 14 PLLFLT 15 VCCD 16 GNDD MC44BS374T1/374T1A Advance Information For More Information On This Product lines down 2 C lines are not hold down when the device is Description SCL I2C clock SDA I2C data LOP Logical output port controlled by I2C bus ...

Page 4

... UHF/VHF carrier An on-chip video test pattern generator with an audio test signal is included. The MC44BS374T1/374T1A operates as a multi-standard modulator and can handle the following systems using the same external circuit components High frequency BiCMOS technology allows integration of the UHF tank circuit and certain filtering functions ...

Page 5

... Sym MM (Machine Model) - MIL STD 883C method 3015-7 ESD HBM (Human Body Model) - MIL STD 883C method 3015-7 ESD MC44BS374T1/374T1A Advance Information For More Information On This Product, Value Unit This device contains protection circuitry to guard 6 V against damage due to high static voltage or electric fields ...

Page 6

... Sound comparator charge pump current During locking When locked RF comparator charge pump current Crystal oscillator stability-negative resistance Logic Output Port Saturation voltage Leakage current MC44BS374T1/374T1A Advance Information For More Information On This Product Video Input 1V NOTE: Table 2. Operating Conditions Min Typ Max Unit 4 ...

Page 7

... Test mode bits-All bits are 0 for normal operation (see Test Mode tables, page 6 & page 7) except X5…X0 “OSC” bit (normal mode is “1”) N0…N11 UHF frequency programming bits, in steps of 250 kHz OOR RF oscillator out-of-frequency range information Y1 oscillator operating range information MC44BS374T1/374T1A Advance Information For More Information On This Product, Bit 6 Bit 5 Bit 4 Bit ...

Page 8

... Transient output inhibit disabled (ie speed up mode 1.h During this speed-up test mode, ATT=0 forces sound current source to 1µA, and ATT=1 forces it to 10µA. MC44BS374T1/374T1A Advance Information For More Information On This Product, UHF OSC 1 Normal operation UHF oscillator disabled (oscillator and PLL ...

Page 9

... VCO out of range, frequency too low, only valid if OOR=1 1 VCO out of range, frequency too high, only valid if OOR High VCO is active 1 Low VCO is active MC44BS374T1/374T1A Advance Information For More Information On This Product, Description NOTE: Description Description Description Go to: www.freescale.com I2C Programming ...

Page 10

... Freescale Semiconductor, Inc. MC44BS374T1A High Frequency Characteristics 11 MC44BS374T1A High Frequency Characteristics Unless otherwise stated: V =5.0 V, Ambient Temperture= inputs / outputs into 75 Ohm load. Specifications only valid for envelope demodulation. Table 3. High Frequency Characteristics Parameter Output signal from modulator section TVOUT output level See Figure 3 ...

Page 11

... Frequency (Mhz) Figure 3. Typical High Frequency Performance 12 MC44BS374T1 High Frequency Characteristics Unless otherwise stated: V =5.0 V, Ambient Temperture= inputs / outputs into 75 Ohm load. Specifications only valid for envelope demodulation. Table 4. High Frequency Characteristics Parameter TVOUT output level for ...

Page 12

... Freescale Semiconductor, Inc. MC44BS374T1 High Frequency Characteristics Table 4. High Frequency Characteristics Parameter Sound subcarrier harmonics Reference picture carrier. See Note 2 ( ∗ Fs) Second harmonic of chroma Using red EBU bar. See Note 2 subcarrier Chroma / Sound intermodulation: Using red EBU bar.See Note Fsnd - Fchr ) ...

Page 13

... Differential Gain CCIR Test Line 330, See Note 2 Luma / Sync ratio Input ratio 7.0 : 3.0 Video modulation depth See Figure 5. See Note 2 Note: 2: See “Characterization Measurement Conditions” on page 15. MC44BS374T1/374T1A Advance Information For More Information On This Product Video Input 1V Test Conditions Min -1.5 - ...

Page 14

... Ref 1Khz, 50% modulation (+/-25Khz) Audio with Sync Buzz EBU color bars Video signal, FM using CCIR 468.2 weighting filter Note: 2: See “Characterization Measurement Conditions” on page 15. MC44BS374T1/374T1A Advance Information For More Information On This Product, PAL Video Modulation Depth Maximum specification Typical Minimum specification ...

Page 15

... Figure 6. Typical Audio Performance 15 Characterization Measurement Conditions The following list shows the MC44BS374T1/374T1A default configuration unless otherwise specified. • Peak White Clip enabled • UHF oscillator ON • Sound and video modulators ON • Sound subcarrier frequency = 5.5 MHz • Sound Oscillator ON • ...

Page 16

... Frequency Frequency 700mVpkpk 100Khz 100kHz 700mV pk-pk MC44BS374T1/374T1A Advance Information For More Information On This Product, Measurement Set-up TVOUT output level Measured picture carrier in dBuV with the HP8596E Spectrum Analyzer using ohm transformation, all cables losses and transformation pads having been calibrated. ...

Page 17

... No Video signal No Audio signal No Video signal No Audio signal No Video signal No Audio signal MC44BS374T1/374T1A Advance Information For More Information On This Product, Characterization Measurement Conditions Measurement Set-up Chroma/Sound Intermodulation Measure in dBc, in reference to picture carrier (TVout_Ref), intermodulation product at channel frequency plus the sound carrier frequency (+5,5 MHz) minus the chroma frequency (-4,43 MHz), resulting in the following spectrum ...

Page 18

... CCIR Rec. 567 weighting network, 100kHz to 5MHz band with sound trap, and envelope detection, and a Rohde & Schwarz UAF Video Analyzer. MC44BS374T1/374T1A Advance Information For More Information On This Product, Measurement Set-up Video Bandwidth The Video signal is demodulated on the spectrum analyzer, and the peak level of the 100KHz signal is measured as a reference ...

Page 19

... Rohde & Schwarz UAF Video Analyzer. No Audio signal Video: 10 step grey scale No Video signal No Audio Signal PS” bit set to 0 and 1 MC44BS374T1/374T1A Advance Information For More Information On This Product, Characterization Measurement Conditions Measurement Set-up Video Differential Gain On line CCIR 330 shown below, the video analyzer DG measure consists of calculating the difference of the Chroma amplitude at the black level and the different amplitudes at each step of the greyscale ...

Page 20

... HP8903A Audio Analyzer at 1kHz. The output level of the Audio analyzer is varied to obtain a Modulation Deviation of 25kHz indicated on the AMFS Demodulator. MC44BS374T1/374T1A Advance Information For More Information On This Product, Measurement Set-up Audio Modulation Depth The audio signal 205mV at 1kHz is supplied by the Audio Analyzer, and the FM demodulated signal deviation is indicated on the Demodulator in Khz peak ...

Page 21

... UHF oscillator, and the video and sound modulator section’s bias are internally turned OFF. 2 The I C bus section remains active. The MC44BS374T1/374T1A can be set to standby mode with a combination of 3 bits: OSC=0, SO=1 and ATT=1 16.4 Transient Output Inhibit To minimize the risk of interference to other channels while the UHF PLL is acquiring a lock on the ...

Page 22

... Antenna Input. This reduces the risks of intermodulation in certain areas. The LOP can also be used as an OFF position bypass switch or for other logic functions in the application. Antenna Input Figure 7. Typical Attenuator Application with Pin Diode MC44BS374T1/374T1A Advance Information For More Information On This Product, F 128 × ...

Page 23

... Freescale Semiconductor, Inc. 16.8 Video Section - Peak White Clip The MC44BS374T1/374T1A requires the following for proper video functionality: • A composite video input with negative going sync pulses • A nominal level of 1 Vpp This signal is AC-coupled to the video input where the sync tip level is clamped. ...

Page 24

... It is recommended to adjust the value of R experimentally depending on the application and requirements. In the proposed application schematic a value of 15 kΩ has been chosen. Figure 9. Sound PLL Loop Filter Calculation MC44BS374T1/374T1A Advance Information For More Information On This Product, Kpd * ...

Page 25

... SDA fall time at 3ma sink I and 400pF load SDA rise time SCL fall/rise time Pulse width of spikes suppressed by the input filter 17.2 Timing Definitions Tbuf Stop Start Chip Address SSDA SSCL Tsu;sto Thd;sta Tsu;dat MC44BS374T1/374T1A Advance Information For More Information On This Product Symbol Min - 2.1 IH ...

Page 26

... Table 10. Permitted Data Bytes (Incoming Information) Example 1 STA Example 2 STA Example 3 STA Example 4 STA Note: STA = Start condition MC44BS374T1/374T1A Advance Information For More Information On This Product, Vcc Vih ... dead band Vil 0V Figure 11. SDA/SCL Levels ...

Page 27

... The incoming information consists of the read mode chip address byte. The device then answers with an ACK followed by one byte containing three bits of status information. No acknowledge is answered by the modulator after this byte. MC44BS374T1/374T1A Advance Information For More Information On This Product, High Speed I2C Compatible Bus ...

Page 28

... SDA ACK VCC 5K XTAL 1.5K VCC PREM 11.8k VCC VCC 5K SPLLFLT VCC PLLFLT 2K Figure 13. Pin Circuit Schematics MC44BS374T1/374T1A Advance Information For More Information On This Product, VCC SCL 1/2 VCCD 10k audio VCC TV OUT VCC 75 VCC 100 Go to: www.freescale.com VCCD 25K 1/2 VCCD VCC LOP ...

Page 29

... Note value depends on crystal characteristics Motorola application board. Note PLL Loop Filter components at pin 14 must be as close as possible to Vccd at pin 15. Note: 3. Supply voltage decoupling capacitors must be as close as possible to ground. MC44BS374T1/374T1A Advance Information For More Information On This Product, Vcc ...

Page 30

... Freescale Semiconductor, Inc. Evaluation Board Layout and Schematic 20 Evaluation Board Layout and Schematic 20.1 Evaluation Board Layout Figure 15. Evaluation Board PCB Layout MC44BS374T1/374T1A Advance Information For More Information On This Product, Go to: www.freescale.com ...

Page 31

... Freescale Semiconductor, Inc. 20.2 Evaluation Board Schematic Figure 16. Evaluation Board Schematic MC44BS374T1/374T1A Advance Information For More Information On This Product, Evaluation Board Layout and Schematic Go to: www.freescale.com ...

Page 32

... MCBS374T1A (Part number coded on 10 digits) • 2nd line: Assembly site code AW (2 digits) followed by the wafer lot code L (1 digit), year Y (1 digit) and work week WW (2 digits) MC44BS374T1/374T1A Advance Information For More Information On This Product, MCBS374T1 Pin 1 Dot or Dimple MCBS374T1A Pin 1 Dot or Dimple Go to: www ...

Page 33

... Freescale Semiconductor, Inc. 23 Case Outline Millimeters Dim Min Max Min A 1.35 1.75 0.054 A1 0.1 0.25 0.004 D 9.8 10 0.385 E 5.8 6.2 0.229 E1 3.8 4 0.150 b 0.35 0.49 0.014 c 0.19 0.25 0.008 e 1.27 BSC L 0.4 1.25 0.016 h 0.25 0.5 0.010 For More Information On This Product, Note: 1. Dimensions and Tolerances per ASME Inches Y14.5M, 1994. Max Note: 2. Controlling dimension: Millimeters. ...

Page 34

... Freescale Semiconductor was negligent regarding the design or manufacture of the part. MC44BS374T1/374T1A Go to: www.freescale.com ...

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