SM5306A

SM5306A NPC | Alldatasheet

Document overview

• Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
• PDF pages: 8

Technical content

SEIKO NPC CORPORATION —1 Low Voltage, 3-channel Video Buffer OVERVIEW The SM5306A is a 3-channel low-voltage video buffer IC that can drive a 75 Ω termination resistance load. The output buffer gain can be switched between 0dB and 6dB. A built-in sag compensation circuit enables a lower output coupling capacitance to be used. The device operates from a 3.0 to 5.5V supply.

FEATURES

I Supply voltage: 3.0 to 5.5V I Current consumption: 24mA (V CC = 3.3V) I Output gain switching: 0dB (GSEL = LOW) 6dB (GSEL = HIGH) I Gain error: 0.5dB I Maximum passband frequency: over 20MHz I Maximum output voltage: min. 2.0Vp-p (gain = 6dB) I Sag compensation circuit built-in I Synctip clamp input I Operating ambient temperature range: 0 to 70 C I Package: 16-pin VSOP (Pb free)

APPLICATIONS

I LCD monitor

ORDERING INFORMATION

(Top view) PACKAGE DIMENSIONS (Unit: mm) Device Package SM5306AV 16-pin VSOP VCC1 1 IN1 GND1 IN2

16 OFB1

9 OUT3

6.4 ± 0.2 4.4 ± 0.2 0.275TYP 5.1 ± 0.2 0.65 0.12 0.10 M0.22 − 0.05 + 0.1 1.15 ± 0.1 0.10 ± 0.05 0.15 − 0.05 + 0.1 0.5 ± 0.2 0 to 10 °

SEIKO NPC CORPORATION —2 BLOCK DIAGRAM PIN DESCRIPTION Number Name I/O 1. I: input, O: output

Description

1 VCC1 – Supply voltage

2 IN1 I Video signal input 1

3 GND1 – Ground 1

4 IN2 I Video signal input 2

5 GND2 – Ground 2

6 GSEL I Gain select (LOW: 0dB, HIGH:

6dB)

7 IN3 I Video signal input 3

8 GND3 – Ground 3

9 OUT3 O Video signal output 3

10 OFB3 O Output feedback 3 (for sag compensation circuit)

11 VCC3 – Supply voltage 3

12 OUT2 O Video signal output 2

13 OFB2 O Output feedback 2 (for sag compensation circuit)

14 VCC2 – Supply voltage 2

15 OUT1 O Video signal output 1

16 OFB1 O Output feedback 1 (for sag compensation circuit)

SEIKO NPC CORPORATION —3 PIN EQUIVALENT CIRCUIT Number Name Equivalent circuit IN1 IN2 IN3

6 GSEL

R R R R

SEIKO NPC CORPORATION —4 SPECIFICATIONS Absolute Maximum Ratings VCC1 VCC2 VCC3 V CC , GND 0V , unless otherwise noted Recommended Operating Conditions DC Characteristics (GSEL) V CC 3.0 to 5.5V , Ta 0 to 70 C, unless otherwise noted Analog Characteristics V CC = 3.3V , Ta = 25 C, R L = 150 Ω , fin = 100kHz, V IN = 1.0Vp-p, unless otherwise noted See “Measurement Circuit Diagram” Parameter Symbol Condition Rating Unit Supply voltage range V CC 0.3 to 7.0 V Input voltage range V IN GSEL pin GND – 0.3 to V CC + 0.3 V Storage temperature range T STG 55 to 125 C Power dissipation P D 250 mW Parameter Symbol Condition Rating Unit Supply voltage V CC 3.0 to 5.5 V Operating ambient temperature range Ta 0 to 70 C Parameter Symbol Condition Rating Unit min typ max HIGH-level input voltage V IH V CC – 0.5 – – V LOW-level input voltage V IL – – 0.5 V Input leakage current I LL V IN = 0V – – 1 µ A I LH V IN = V CC ––1 µ A Parameter Symbol Condition Rating Unit min typ max Current consumption 1 I CC1 Gain = 6dB, no signal input – 24 30 mA Current consumption 2 I CC2 V CC = 5.5V, Gain = 6dB, no signal input –2 6 3 5 m A Output gain 1 A Gain = 0dB – 0.5 0 0.5 dB Output gain 2 A Gain = 6dB 5.5 6.0 6.5 dB Channel gain error dA V Gain = 0dB, 6dB – – 0.3 dB Channel crosstalk C T Gain = 6dB, ratio with V OUT 2Vp-p – – 65 – dB Maximum passband frequency 1 F PB1 –1dB, gain 0dB 20 49 – MHz Maximum passband frequency 2 F PB2 –1dB, gain 6dB 20 23 – MHz Input voltage V AIN1 AC-coupled input, Gain 0dB, 6dB – – 1.0 Vp-p Maximum output voltage 1 V OUT1 Gain 0dB, THD 1.0 – – Vp-p Maximum output voltage 2 V OUT2 Gain 6dB, THD 2.0 – – Vp-p Input clamp voltage V CLMP No signal input 1.15 1.35 1.55 V Output distortion ratio T HD Gain = 6dB – – 1

SEIKO NPC CORPORATION —5 Measurement Circuit Diagram FUNCTIONAL DESCRIPTION Output Gain Setting (GSEL) GSEL pin Output gain LOW 0dB HIGH 6dB VCC1 IN1 GND1 IN2 OFB1 OUT1 VCC2 OFB2 GND2 GSEL IN3 GND3 OUT2 VCC3 OFB3 OUT3 4.7µF 4.7µF 4.7µF 22µF 75Ω 100µF 22µF 100µF 100µF 75Ω 75Ω 75Ω 75Ω 75Ω + 22µF 0.1µF 0.1µF 0.1µF 4.7µF INPUT1 INPUT2 INPUT3

SEIKO NPC CORPORATION —6 TYPICAL APPLICATION CIRCUIT Application Circuit 1 (standard connection) Note. Capacitance does not restrict to this value. Application Circuit 2 (capacitively-coupled display module connection) I Capacitor connections to the SM5306A output pins are not required. I Short circuit OUT pins to OFB pins. In this mode, the sag compensation circuit does not function. Note. Only output connection is shown. Application Circuit 3 (input connection to next stage on same printed circuit board) I A gain of 0dB is suitable, since matching resistors are not required. In this case, it is recommended that a Ω resistor be connected to ground. Note. Only output connection is shown. IN1 IN2 GND3 GND1 GND2 IN3 OFB1 OFB2 OFB3 VCC3 OUT1 VCC2 OUT3 OUT2 CLAMP VR 22µF 75Ω+ 75Ω 22µF 75Ω+ 75Ω 22µF 75Ω+ 75Ω GSEL H L 100µF 4.7µF 4.7µF 4.7µF 100µF 100µF VCC1 CLAMP VR CLAMP VR 75Ω OUT Display Module 75Ω 6dB SM5306 OFB OUT OFB 100µF 22µF 1kΩ 6dB SM5306

SEIKO NPC CORPORATION —8 NC0307BE 2006.04 Please pay your attention to the following points at time of using the products shown in this document. The products shown in this document (hereinafter “Products”) are not intended to be used for the apparatus that exerts harmful influence on human lives due to the defects, failure or malfunction of the Products. Customers are requested to obtain prior written agreement for such use from SEIKO NPC CORPORATION (hereinafter “NPC”). Customers shall be solely responsible for, and indemnify and hold NPC free and harmless from, any and all claims, damages, losses, expenses or lawsuits, due to such use without such agreement. NPC reserves the right to change the specifications of the Products in order to improve the characteristic or reliability thereof. NPC makes no claim or warranty that the contents described in this document dose not infringe any intellectual property right or other similar right owned by third parties. Therefore, NPC shall not be responsible for such problems, even if the use is in accordance with the descriptions provided in this document. Any descriptions including applications, circuits, and the parameters of the Products in this document are for reference to use the Products, and shall not be guaranteed free from defect, inapplicability to the design for the mass-production products without further te sting or modification. Customers are requested not to export or re-export, directly or indirectly, the Products to any country or any ent ity not in compliance with or in violation of the national export administration laws, treaties, orders and regulations. Customers are req uested appropriately take steps to obtain required permissions or approvals from appropriate government agencies. SEIKO NPC CORPORATION 15-6, Nihombashi-kabutocho, Chuo-ku, Tokyo 103-0026, Japan Telephone: +81-3-6667-6601 Facsimile: +81-3-6667-6611 http://www.npc.co.jp/ Email: sales @npc.co.jp