sm5309bv Nippon Precision Circuits Inc, (NPC), sm5309bv Datasheet
sm5309bv
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sm5309bv Summary of contents
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... I LCD TVs I PDPs I Projectors I ORDERING INFORMATION Device SM5309BV 3-channel Video Buffer with Built-in wideband LPF *1 by 256 steps. The lowpass filter supports 480i to 1080i for slave address can be set by ADS (3-state input) to allow up to three ) is 1.8k Ω . PINOUT (Top view) = 1.8k Ω ) ...
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BLOCK DIAGRAM VDD SDA Control SCL IN1A Clamp/Bias/Direct IN1B Clamp/Bias/Direct CH-1 IN2A Clamp/Bias/Direct IN2B Clamp/Bias/Direct CH-2 Clamp/Bias/Direct IN3A IN3B Clamp/Bias/Direct CH-3 Note. The recommended value of the external resistor (R SM5309B ADS MUXSEL Current Source Bypass 5th ...
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PIN DESCRIPTION *1 Number Name I/O 1 IN1A I 2 IN1B I 3 GND – 4 ISET – – 6 IN2A I 7 IN2B I 8 VCC – 9 IN3A I 10 IN3B I 11 MUXSEL I 12 ...
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PIN EQUIVALENT CIRCUITS *1 Number Name I/O 1 IN1A 2 IN1B 6 IN2A I 7 IN2B 9 IN3A 10 IN3B 20 OUT1 18 OUT2 O 16 OUT3 23 REF1 O 22 REF2 O SM5309B Equivalent circuit VCC INnA INnB GND ...
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Number Name I/O 13 SDA I/O 12 SCL I 11 MUXSEL I 24 ADS I *1. I: input, O: output Note. Resistance values in the equivalent circuits indicate design values. SM5309B Equivalent circuit 250Ω SDA GND 180Ω SCL GND ...
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SPECIFICATIONS Absolute Maximum Ratings GND = 0V, VCC = VDD = V CC Parameter Symbol Supply voltage V CC Input voltage V IN Storage temperature range T STG *1 Power dissipation Junction temperature T J *1. Ta ...
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AC Characteristics (I C-BUS) = 5.0V 3.0 to 5.5V 25°C, unless otherwise noted Parameter Symbol SCL clock frequency f SCL SCL hold time (start condition) t HD;STA SCL clock LOW-level pulsewidth t ...
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Analog Characteristics Analog input characteristics = 5.0V 3.0 to 5.5V 25°C, fin = 100kHz CH-1 set to clamp input, CH-2 and CH-3 set to bias input, FCDATA = 227, unless otherwise noted. ...
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Analog output characteristics = 5.0V 3.0 to 5.5V 25°C, fin = 100kHz CH-1 set to clamp input, CH-2 and CH-3 set to bias input, FCDATA = 227, unless otherwise noted. Internal mode ...
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Mode Condition Settings Table 1. Mode settings Mode setting CH-1 a Clamp Evaluation Circuit Diagram VCC 1µF + IN1A 1µF + IN2A 1µF + IN3A 1µF + IN1B 1µF + IN2B ...
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FUNCTIONAL DESCRIPTION 2 I C-BUS Control 2 The SM5309B uses BUS interface to set the following functions. 1) Cutoff frequency 2) Input multiplexer selection 3) fc mode switching (1/2 cutoff frequency switching) 4) Filter mode/filter bypass mode ...
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The ADS pin can set one of three slave addresses. Note that D0 must be “0 (Write)”. The input circuit of ADS pin is placed in analog supply (VCC, GND) area. ADS HEX L: GND 90h ...
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Flag settings (1) Cutoff frequency Register name: FCSET Flag names: FCM, FC [6:0] The FCSET register setting sets the cutoff frequency using one of two tuning adjustment functions, thus a total of 256 steps are possible. FCDATA FCSET FCM 0 ...
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Power-down mode select Register name: CONDITION2 Flag name: PD This flag selects standard/power-down for the analog block. Flag name (4) Input multiplexer selection Register name: CONDITION2 Flag name: MUX This flag selects the ...
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Lowpass Filter The SM5309B has built-in 5th-order lowpass filters with variable cutoff frequency. The cutoff frequency range is set by the resistor (R ) connected between ISET and GND, and the cutoff frequency setting is determined by ISET FCDATA data. ...
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Figure 1. Cutoff frequency vs. FCDATA (R R ISET R controls the internal current source, and its connection is essential. The recommended value (R ISET 1.8kΩ. In power-down ...
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Power-ON Reset When power is applied, an internal power-ON reset circuit operates initializing the internal register flags to their default settings. At power-ON, all supplies should be applied simultaneously. Reference Voltage (REF) The REFn pins ( are ...
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USAGE PRECAUTIONS Slave Address Setting When slave address 92h is used, the ADS pin pull-up to VCC. When slave address 94h is used, the ADS input must be left open circuit. In this case, an external resistor should be connected ...
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TYPICAL CHARACTERISTICS = 5.0V 3.0 to 5.5V 25°C, fin = 100kHz CH-1 set to clamp input, CH-2 and CH-3 set to bias input, FCDATA = 227, unless otherwise noted Gain ...
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Gain –6 –12 –18 Phase –24 –30 –36 –42 –48 –54 –60 0 Frequency [MHz] Figure 10. Gain and Phase characteristics (standard fc mode, FCDATA = 227 Gain –6 –12 –18 Phase –24 –30 ...
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Frequency [MHz] Figure 14. Gain vs. FCDATA, fc mode FCDATA (1) 227 (2) 227 (3) 10 (4) 10 220 ...
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CC2 * CC1 *1 100 80 CC3 * 4.5 4.75 5 5.25 V [V] CC *1. filter mode, FCDATA = 0 *2. filter mode, FCDATA = 255 *3. filter bypass mode ...
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V [V] IN Figure 23 OUT (filter mode, direct mode) SM5309B 4.5 4 3.5 3 2.5 2 1.5 1 0.5 0 ...
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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 ...