Texas Instruments THS 7347 INSTALLATION INSTRUCTIONS

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3.3V

2:1

Input1

0.1 Fm

In A

InB

Input2

75 W

ADC

Sync

TIP

Clamp

+Offset

AC-

BIAS

1kW 878 W

675 W

150 W

Out

SAG

47 Fm

33 Fm

75 W

Monitor Output

75 W

SDA

SCL

Disable

= OPEN

3-Channel RGBHV Video Buffer with I2C™ Control, 2:1 Input Mux,

Monitor Pass-Through, and Selectable Input Bias Modes

FEATURES APPLICATIONS

• 3-Video Amplifiers for CVBS, S-Video, EDTV,

HDTV Y'P'

• H/V Sync Paths with Adjustable Schmitt

Trigger

• 2:1 Input Mux

• I2C Control of All Functions on Each Channel

• Unity-Gain Buffer Path for ADC Buffering: – 500-MHz Bandwidth, 1200-V/ µ s Slew Rate

• Monitor Pass-Through Function:

– 500-MHz Bandwidth, 1300-V/ µ s Slew Rate – 6-dB Gain with SAG Correction Capable – High Output Impedance in Disable State

• Selectable Input Bias Modes: – AC-Coupled with Sync-Tip Clamp – AC-Coupled with Bias – DC-Coupled with Offset Shift – DC-Coupled

• +2.7-V to +5-V Single-Supply Operation

• Total Power Consumption: 265 mW at 3.3 V

• Disable Function Reduces Current to 0.1 µ A

• Rail-to-Rail Output:

– Output Swings Within 0.1 V of the Rails,

Allowing AC- or DC-Output Coupling

• Lead-free, RoHS TQFP Package

, G'B'R', and R'G'B' Video

BP'R

THS7347

SLOS531 – MAY 2007

• Projectors

• Professional Video Systems

• LCD/ DLP

DESCRIPTION

Fabricated using the revolutionary complementary silicon-germanium (SiGe) BiCom3 process, the THS7347 is a low-power, single-supply 2.7-V to 5-V 3-channel integrated video buffer with horizontal (H) and vertical (V) sync signal paths. It incorporates a 500-MHz bandwidth, 1200-V/ µ s unity-gain buffer ideal for driving analog-to-digital converters (ADCs) and video decoders. In parallel with the unity-gain buffer, a monitor pass-through path allows for passing the input signal on to other systems. This path has a 6-dB gain, 500-MHz bandwidth, 1300V/ µ s slew rate, SAG correction capability, and high output impedance while disabled.

Each channel of the THS7347 is individually I2C-configurable for all functions, including controlling the 2:1 input mux. Its rail-to-rail output stage allows for both ac- and dc-coupling applications.

/LOCS Input Buffering

3.3 V Single-Supply Projector Input System with Monitor Pass-Through

PowerPAD is a trademark of Texas Instruments. DLP is a registered trademark of Texas Instruments. I2C is a trademark of NXP Semiconductors, Inc. All other trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

(1 of 3 R'G'B' Channels Shown)

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THS7347

SLOS531 – MAY 2007

DESCRIPTION, CONTINUED

As part of the THS7347 flexibility, the device input can be selected for ac- or dc-coupled inputs. The ac-coupled modes include a sync-tip clamp option for CVBS/Y'/G'B'R' with sync or a fixed bias for the C'/P' channels without sync. The dc input options include a dc input or a dc+Offset shift to allow for a full sync dynamic range at the output with 0 V input.

The THS7347 is available in a lead-free, RoHS-compliant TQFP package.

This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.

ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.

/P'

/R'G'B'

PACKAGING/ORDERING INFORMATION

(1)

PACKAGED DEVICES PACKAGE TYPE TRANSPORT MEDIA, QUANTITY

THS7347IPHP Tray, 250

THS7347IPHPR Tape and reel, 1000

HTQFP-48 PowerPAD™

(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI

web site at www.ti.com .

ABSOLUTE MAXIMUM RATINGS

Over operating free-air temperature range (unless otherwise noted)

stg

(1) Stresses above those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings

(2) The absolute maximum junction temperature under any condition is limited by the constraints of the silicon process. (3) The absolute maximum junction temperature for continuous operation is limited by the package constraints. Operation above this

Supply voltage, GND to VAor GND to V

Input voltage –0.4 to VAor V Continuous output current ± 80 mA Continuous power dissipation See Dissipation Rating Table Maximum junction temperature, any condition

(2)

Maximum junction temperature, continuous operation, long term reliability Storage temperature range –65 to +150 ° C Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds 300 ° C

HBM 1500 V

ESD ratings CDM 1500 V

MM 100 V

only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is not implied Exposure to absolute maximum rated conditions for extended periods may degrade device reliability.

temperature may result in reduced reliability and/or lifetime of the device.

(1)

THS7347 UNIT

5.5 V

+150 ° C

(3)

+125 ° C

DISSIPATION RATINGS

POWER RATING

= +125 ° C)

PACKAGE ( ° C/W) ( ° C/W) TA= +25 ° C TA= +85 ° C

HTQFP-48 with PowerPAD (PHP) 1.2 35 2.85 W 1.14 W

(1) This data was taken with a PowerPAD standard 3-inch by 3-inch, 4-layer printed circuit board (PCB) with internal ground plane

connections to the PowerPAD.

(2) Power rating is determined with a junction temperature of +125 ° C. This temperature is the point where distortion starts to substantially

increase and long-term reliability starts to be reduced. Thermal management of the final PCB should strive to keep the junction temperature at or below +125 ° C for best performance and reliability.

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RECOMMENDED OPERATING CONDITIONS

Digital supply voltage 2.7 5 V

Analog supply voltage. Must be equal to or greater than V

Ambient temperature –40 +85 ° C

THS7347

SLOS531 – MAY 2007

MIN NOM MAX UNIT

VDD 5 V

ELECTRICAL CHARACTERISTICS, V

= V

= 3.3 V

RL= 150 Ω 5 pF to GND for Monitor Output, 19 k Ω || 8 pF Load to GND for Buffer Output, SAG pin shorted to Monitor Output Pin, unless otherwise noted.

TYP OVER TEMPERATURE

PARAMETER TEST CONDITIONS +25 ° C +25 ° C +70 ° C +85 ° C UNIT TYP

AC PERFORMANCE

Small-signal Buffer output 500 MHz Typ bandwidth VO= 0.2 V (–3 dB)

–1 dB Flatness VO= 0.2 V

Large-signal Buffer output VO= 1 V bandwidth (–3 dB)

Slew rate

Group delay at 100 kHz

Differential gain NTSC/PAL

Differential phase NTSC/PAL

Total harmonic Buffer output VO= 1 V distortion f = 1 MHz

Signal-to-noise ratio No weighting, up to 100 MHz

Channel-to-channel crosstalk

MUX Isolation f = 100 MHz

Gain

Settling time VIN= 1 VPP; 0.5% Settling

Output impedance f = 10 MHz

DC PERFORMANCE

Output offset voltage Bias = dc

Average offset voltage drift

Bias output voltage

Sync tip clamp voltage

Monitor output 450 MHz Typ Buffer output 425 MHz Typ

Monitor output 375 MHz Typ

Monitor output VO= 2 V Buffer output VO= 1 V

Monitor output VO= 2 V Buffer output 1.2 ns Typ Monitor output 1.2 ns Typ Buffer output 0.05/0.05 % Typ Monitor output 0.1/0.1 % Typ Buffer output 0.1/0.15 degrees Typ Monitor output 0.15/0.2 degrees Typ

Monitor output VO= 2 V Buffer output 63 dB Typ

Monitor output 65 dB Typ Buffer output –40 dB Typ Monitor output –36 dB Typ Buffer output 64 dB Typ Monitor output 66 dB Typ Buffer output f = 100 kHz; VO= 1 V Monitor output f = 100 kHz; VO= 2 V Buffer output 6 ns Typ Monitor output 6 ns Typ Buffer output 0.3 Ω Typ Monitor output 0.4 Ω Typ

Buffer output 15 ± 80 ± 85 ± 85 mV Max Monitor output 20 ± 120 ± 125 ± 125 mV Max Buffer output 20 µ V/ ° C Typ Monitor output 20 µ V/ ° C Typ

Buffer output

Monitor output

Buffer output 290 200/380 195/385 190/390 mV Min/Max Monitor output 300 200/400 195/405 190/410 mV Min/Max

f = 100 MHz

Bias = dc

Bias = dc + shift, VIN= 0 V 255 175/335 165/345 160/350 mV Min/Max Bias = ac 1.0 0.85/1.15 0.8/1.2 0.8/1.2 V Min/Max Bias = dc + shift, VIN= 0 V 235 145/325 135/335 130/340 mV Min/Max Bias = ac 1.7 1.55/1.85 1.5/1.9 1.5/1.9 V Min/Max

Bias = ac STC, clamp voltage

PP PP

475 MHz Typ 240 MHz Typ

1050 V/ µ s Typ 1050 V/ µ s Typ

–58 dB Typ –57 dB Typ

0 dB Typ 6 5.8/6.25 5.75/6.3 5.75/6.35 dB Min/Max

0 ° C to –40 ° C to MIN/MAX/

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THS7347

SLOS531 – MAY 2007

ELECTRICAL CHARACTERISTICS, V

= V

= 3.3 V (continued)

RL= 150 Ω 5 pF to GND for Monitor Output, 19 k Ω || 8 pF Load to GND for Buffer Output, SAG pin shorted to Monitor Output Pin, unless otherwise noted.

TYP OVER TEMPERATURE

PARAMETER TEST CONDITIONS +25 ° C +25 ° C +70 ° C +85 ° C UNIT TYP

DC PERFORMANCE, continued

Input bias current Bias = dc; (–) implies IBout of the pin –1.3 –3.0 –3.5 –3.5 µ A Max Average bias current drift Bias = dc 10 nA/ ° C Typ

Bias = ac STC, low bias 2.3 0.9/3.6 0.8/3.8 0.7/3.9 µ A Min/Max

Sync tip clamp bias current Bias = ac STC, mid bias 5.8 3.8/8.0 3.7/8.2 3.6/8.3 µ A Min/Max

Bias = ac STC, high bias 8.1 5.7/10.8 5.6/11.0 5.5/11.1 µ A Min/Max

INPUT CHARACTERISTICS

Input voltage range Bias = dc 0 to 2 V Typ

Input resistance

Input capacitance 1.5 pF Typ

OUTPUT CHARACTERISTICS: MONITOR OUTPUT

High output voltage swing

Low output voltage swing

Output current RL= 10 Ω to 1.65 V

OUTPUT CHARACTERISTICS: BUFFER OUTPUT

High output voltage swing (Limited by input range and G = 0 dB)

Low Output voltage swing (Limited by input range and G = 0 dB)

Output Current

POWER SUPPLY: ANALOG

Maximum operating voltage V Minimum operating voltage V Maximum quiescent current VA, dc + shift mode, VIN= 100 mV 80 100 103 105 mA Max Minimum quiescent current VA, dc + shift mode, VIN= 100 mV 80 60 57 55 mA Min Power supply rejection (+PSRR) Buffer output 50 dB Typ

POWER SUPPLY: DIGITAL

Maximum operating voltage V Minimum operating voltage V Maximum quiescent current VDD, VIN= 0 V 0.65 1.2 1.3 1.4 mA Max Minimum quiescent current VDD, VIN= 0 V 0.65 0.35 0.3 0.25 mA Min

DISABLE CHARACTERISTICS: ALL CHANNELS DISABLED

Quiescent current All channels disabled 0.1 µ A Typ Turn-on time delay (tON) 5 µ s Typ Turn-on time delay (t

Sourcing 80 50 47 45 mA Min Sinking 75 50 47 45 mA Min

Sourcing RL= 10 Ω to GND 80 50 47 45 mA Min Sinking RL= 10 Ω to 1.65 V 75 50 47 45 mA Min

) 2 µ s Typ

OFF

Bias = ac bias mode 25 k Ω Typ Bias = dc, dc + shift, ac STC 3 M Ω Typ

RL= 150 Ω to 1.65 V 3.15 2.9 2.8 2.8 V Min RL= 150 Ω to GND 3.05 2.85 2.75 2.75 V Min RL= 75 Ω to 1.65 V 3.05 V Typ RL= 75 Ω to GND 2.9 V Typ RL= 150 Ω to 1.65 V 0.15 0.25 0.28 0.29 V Max RL= 150 Ω to GND 0.1 0.18 0.21 0.22 V Max RL= 75 Ω to 1.65 V 0.25 V Typ RL= 75 Ω to GND 0.08 V Typ

2 1.8 1.75 1.75 V Min

Load = 19 k Ω 8 pF to 1.65 V

0.05 0.12 0.13 0.14 V Max

A A

DD DD

Time for lSto reach 50% of final value after I2C control is initiated

3.3 5.5 5.5 5.5 V Max

3.3 2.7 2.7 2.7 V Min

3.3 5.5 5.5 5.5 V Max

3.3 2.7 2.7 2.7 V Min

0 ° C to –40 ° C to MIN/MAX/

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THS7347

SLOS531 – MAY 2007

ELECTRICAL CHARACTERISTICS, V

= V

= 3.3 V (continued)

RL= 150 Ω 5 pF to GND for Monitor Output, 19 k Ω || 8 pF Load to GND for Buffer Output, SAG pin shorted to Monitor Output Pin, unless otherwise noted.

TYP OVER TEMPERATURE

PARAMETER TEST CONDITIONS +25 ° C +25 ° C +70 ° C +85 ° C UNIT TYP

H/V SYNC CHARACTERISTICS: R

Schmitt trigger adjust pin voltage Reference for Schmitt trigger 1.47 1.35/1.6 1.3/1.65 1.27/1.68 V Min/Max Schmitt trigger threshold range Allowable range for Schmitt trigger adjust 0.9 to 2 V Typ

Schmitt trigger VT+ 0.25 V Typ

Schmitt trigger VT– –0.3 V Typ Schmitt trigger threshold pin input

resistance H/V Sync input impedance 10 M Ω Typ H/V Sync high output voltage 1 k Ω to GND 3.15 3.05 3.0 3.0 V Min H/V Sync low output voltage 1 k Ω to GND 0.01 0.05 0.1 0.1 V Max H/V Sync source current 10 Ω to GND 50 35 30 30 mA Min H/V Sync sink current 10 Ω to 3.3 V 35 25 23 21 mA Min H/V Delay Delay from Input to output 6.5 ns Typ H/V to buffer output skew 5 ns Typ

= 1 k Ω To GND

Load

Positive-going input voltage threshold relative to Schmitt trigger threshold

Negative-going input voltage threshold relative to Schmitt trigger threshold

Input resistance into Control pin 10 k Ω Typ

(1)

(1) Schmitt trigger threshold is defined by (VT+ – VT–)/2.

0 ° C to –40 ° C to MIN/MAX/

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THS7347

SLOS531 – MAY 2007

ELECTRICAL CHARACTERISTICS, V

= V

= 5 V

RL= 150 Ω || 5pF to GND for Monitor Output, 19k Ω || 8pF Load to GND for Buffer Output, SAG pin shorted to Monitor Output Pin, unless otherwise noted.

TYP OVER TEMPERATURE

PARAMETER TEST CONDITIONS +25 ° C +25 ° C +70 ° C +85 ° C UNIT TYP

AC PERFORMANCE

Small-signal Buffer output 550 MHz Typ bandwidth VO= 0.2 V (–3 dB)

–1 dB Flatness VO= 0.2 V

Large-signal Buffer output VO= 1 V bandwidth (–3 dB)

Slew rate

Group delay at 100 kHz

Differential gain NTSC/PAL

Differential phase NTSC/PAL

Total harmonic Buffer output VO= 1 V distortion f = 1 MHz

Signal-to-noise ratio No weighting, up to 100 MHz

Channel-to-channel crosstalk

MUX Isolation f = 100 MHz

Gain

Settling time VIN= 1 VPP; 0.5% Settling

Output impedance f = 10 MHz

DC PERFORMANCE

Output offset voltage Bias = dc

Average offset voltage drift

Bias output voltage

Sync tip clamp voltage

Input bias current Bias = dc; (–) implies IBout of the pin –1.4 –3.0 –3.5 –3.5 µ A Max Average bias current drift Bias = dc 10 nA/ ° C Typ

Sync tip clamp bias current Bias = ac STC, mid bias 6.2 3.9/8.4 3.8/8.6 3.7/8.7 µ A Min/Max

Monitor output 500 MHz Typ Buffer output 450 MHz Typ

Monitor output 400 MHz Typ

Monitor output VO= 2 V Buffer output VO= 1 V

Monitor output VO= 2 V Buffer output 1.15 ns Typ Monitor output 1.15 ns Typ Buffer output 0.05/0.05 % Typ Monitor output 0.1/0.1 % Typ Buffer output 0.05/0.05 degrees Typ Monitor output 0.05/0.05 degrees Typ

Monitor output VO= 2 V Buffer output 63 dB Typ

Buffer output 15 ± 80 ± 85 ± 85 mV Max Monitor output 20 ± 120 ± 125 ± 125 mV Max Buffer output 20 µ V/ ° C Typ Monitor output 20 µ V/ ° C Typ

Buffer output

Monitor output

Buffer output 295 205/385 200/390 195/395 mV Min/Max Monitor output 300 200/400 195/405 190/410 mV Min/Max

f = 100 MHz

Bias = dc

Bias = dc + shift, VIN= 0 V 265 185/345 175/355 170/360 mV Min/Max Bias = ac 1.5 1.3/1.65 1.25/1.7 1.25/1.7 V Min/Max Bias = dc + shift, VIN= 0 V 235 145/325 135/335 130/340 mV Min/Max Bias = ac 2.65 2.5/2.8 2.45/2.85 2.45/2.85 V Min/Max

Bias = ac STC, clamp voltage

Bias = ac STC, low bias 2.4 0.9/3.9 0.8/4.0 0.7/4.1 µ A Min/Max

Bias = ac STC, high bias 8.6 6/11.2 5.8/11.4 5.7/11.5 µ A Min/Max

PP PP

525 MHz Typ 325 MHz Typ

1200 V/ µ s Typ 1350 V/ µ s Typ

–71 dB Typ –67 dB Typ

0 dB Typ 6 5.8/6.25 5.75/6.3 5.75/6.35 dB Min/Max

0 ° C to –40 ° C to MIN/MAX/

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THS7347

SLOS531 – MAY 2007

ELECTRICAL CHARACTERISTICS, V

= V

= 5 V (continued)

RL= 150 Ω || 5pF to GND for Monitor Output, 19k Ω || 8pF Load to GND for Buffer Output, SAG pin shorted to Monitor Output Pin, unless otherwise noted.

TYP OVER TEMPERATURE

PARAMETER TEST CONDITIONS +25 ° C +25 ° C +70 ° C +85 ° C UNIT TYP

INPUT CHARACTERISTICS

Input voltage range Bias = dc 0 to 3.4 V Typ

Input resistance

Input capacitance 1.5 pF Typ

OUTPUT CHARACTERISTICS: MONITOR OUTPUT

High output voltage swing

Low output voltage swing

Output current RL= 10 Ω to 2.5 V

OUTPUT CHARACTERISTICS: BUFFER OUTPUT

High output voltage swing (Limited by input range and G = 0 dB)

Low output voltage swing (Limited by input range and G = 0 dB)

Output current

POWER SUPPLY: ANALOG

Maximum operating voltage V Minimum operating voltage V Maximum quiescent current VA, dc + shift mode, VIN= 100 mV 90 112 115 117 mA Max Minimum quiescent current VA, dc + shift mode, VIN= 100 mV 90 68 65 63 mA Min Power supply rejection (+PSRR) Buffer Output 46 dB Typ

POWER SUPPLY: DIGITAL

Maximum operating voltage V Minimum operating voltage V Maximum quiescent current VDD, VIN= 0 V 1 2 3 3 mA Max Minimum quiescent current VDD, VIN= 0 V 1 0.5 0.4 0.4 mA Min

DISABLE CHARACTERISTICS: ALL CHANNELS DISABLED

Quiescent current All channels disabled 1 µ A Typ Turn-on time delay (tON) 5 µ s Typ Turn-on time delay (t

Sourcing 110 85 80 75 mA Min Sinking 110 85 80 75 mA Min

Sourcing RL= 10 Ω to GND 110 85 80 75 mA Min Sinking RL= 10 Ω to 2.5 V 110 85 80 75 mA Min

) 2 µ s Typ

OFF

Bias = ac bias mode 25 k Ω Typ Bias = dc, dc + shift, ac STC 3 M Ω Typ

RL= 150 Ω to 2.5 V 4.8 4.65 4.6 4.6 V Min RL= 150 Ω to GND 4.7 4.55 4.5 4.5 V Min RL= 75 Ω to 2.5 V 4.7 V Typ RL= 75 Ω to GND 4.6 V Typ RL= 150 Ω to 2.5 V 0.2 0.25 0.28 0.30 V Max RL= 150 Ω to GND 0.1 0.19 0.23 0.24 V Max RL= 75 Ω to 2.5 V 0.24 V Typ RL= 75 Ω to GND 0.085 V Typ

3.4 3.1 3.0 3.0 V Min

Load = 19 k Ω 8 pF to 2.5 V

0.05 0.12 0.13 0.14 V Max

A A

DD DD

Time for lSto reach 50% of final value after I2C control is initiated

5.0 5.5 5.5 5.5 V Max

5.0 2.7 2.7 2.7 V Min

5.0 5.5 5.5 5.5 V Max

5.0 2.7 2.7 2.7 V Min

0 ° C to –40 ° C to MIN/MAX/

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THS7347

SLOS531 – MAY 2007

ELECTRICAL CHARACTERISTICS, V

= V

= 5 V (continued)

RL= 150 Ω || 5pF to GND for Monitor Output, 19k Ω || 8pF Load to GND for Buffer Output, SAG pin shorted to Monitor Output Pin, unless otherwise noted.

TYP OVER TEMPERATURE

PARAMETER TEST CONDITIONS +25 ° C +25 ° C +70 ° C +85 ° C UNIT TYP

H/V SYNC CHARACTERISTICS: R

Schmitt trigger adjust pin voltage Reference for Schmitt trigger 1.54 1.43/1.65 1.38/1.7 1.35/1.73 V Min/Max Schmitt trigger threshold range Allowable range for Schmitt trigger adjust 0.9 to 2 V Typ

Schmitt trigger VT+ 0.25 V Typ

Schmitt trigger VT– –0.3 V Typ Schmitt trigger threshold pin input

resistance H/V Sync input impedance 10 M Ω Typ H/V Sync high output voltage 1 k Ω to GND 4.8 4.7 4.6 4.6 V Min H/V Sync low output voltage 1 k Ω to GND 0.01 0.05 0.1 0.1 V Max H/V Sync source current 10 Ω to GND 90 60 55 55 mA Min H/V Sync sink current 10 Ω to 5 V 50 30 27 25 mA Min H/V Delay Delay from input to output 6.5 ns Typ H/V to buffer output skew 5 ns Typ

= 1 k Ω To GND

Load

Positive-going input voltage threshold relative to Schmitt trigger threshold

Negative-going input voltage threshold relative to Schmitt trigger threshold

Input resistance into Control pin 10 k Ω Typ

(1)

(1) Schmitt trigger threshold is defined by (VT+ – VT–)/2.

0 ° C to –40 ° C to MIN/MAX/

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TIMING REQUIREMENTS FOR I2C INTERFACE

w(H)

w(L)

su(1)

h(1)

SCL

SDA

su(2)

h(2)

su(3)

(buf)

SCL

SDA

StartCondition StopCondition

At V

= 2.7 V to 5 V.

(1) (2)

STANDARD MODE FAST MODE

PARAMETER MIN MAX MIN MAX UNIT

SCL

w(H)

w(L)

su(1)

h(1)

(buf)

su(2)

h(2)

su(3)

Clock frequency, SCL 0 100 0 400 kHz Pulse duration, SCL high 4 0.6 µ s Pulse duration, SCL low 4.7 1.3 µ s Rise time, SCL and SDA 1000 300 ns Fall time, SCL and SDA 300 300 ns Setup time, SDA to SCL 250 100 ns Hold time, SCL to SDA 0 0 ns Bus free time between stop and start conditions 4.7 1.3 µ s Setup time, SCL to start condition 4.7 0.6 µ s Hold time, start condition to SCL 4 0.6 µ s Setup time, SCL to stop condition 4 0.6 µ s Capacitive load for each bus line 400 400 pF

(1) The THS7347 I2C address = 01011(A1)(A0)(R/ W). See the Applications Information section for more information. (2) The THS7347 was designed to comply with version 2.1 of the I2C specification.

THS7347

SLOS531 – MAY 2007

Figure 1. SCL and SDA Timing

Figure 2. Start and Stop Conditions

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