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What is the definition of frame frequency of the LCD driver?
创建于2024-08-17

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用户_5489 (0)

Our company defines the frame frequency without including the frame reverse. For details, please see the common output waveform or segment output waveform in Chapter "LCD driver" of the product User's manual.
Related Products : ml610(Q)40x, ML610(Q)42x, ML610(Q)47x, ML610Q17x, ML610Q38x, ml610q41x, ml610q43x, ML610Q46x, ML620Q416/ML620Q418, ml62q 16xx, ML62Q17xx

创建于2024-08-17

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What effect can be expected when the boosting clock frequency of LCD bias is set to high speed?

When the boosting clock frequency of LCD bias is set to high speed, the display quality improves from stable LCD power supply due to improved current supply capacity, though the consumed current increases a little. Necessary current supply capacity depends on the load capacity and frame frequency of LCD panel; therefore, evaluate stability of the LCD power supply by actually using the LCD panel, and select an adequate boosting clock frequency. Related Products: ML610(Q)40x, ML610(Q)42x, ML610(Q)47x, ML610Q17x, ML610Q38x, ML610Q41x, ML610Q43x, ML610Q46x, ML620Q416/ML620Q418, ML62Q16xx, ML62Q17xx

2024-08-30 - 技术问答

What is the amount of the change in oscillation frequency when a load capacity connected to the crystal oscillation circuit is changed?

You can use the following formula to obtain the amount of the change (ppm) in oscillation frequency with the change in a load capacity of the crystal oscillation circuit: Amount of the change (ppm) ≈ C1/(2C0+2CS)*10^6 C1: Series capacitance of a crystal oscillator C0: Parallel capacitance of a crystal oscillator CS: Load capacity of the crystal oscillation circuit For the series capacitance and parallel capacitance of the crystal oscillator, contact the manufacturer of that oscillator. Related Products: ML610(Q)40x, ML610(Q)42x, ML610(Q)47x, ML610(Q)48x, ML610Q17x, ML610Q35x, ML610Q36x, ML610Q38x, ML610Q41x, ML610Q43x, ML610Q46x, ML620Q13x, ML620Q15x, ML620Q416/ML620Q418, ML620Q503H/ML620Q504H/ML620Q506H, ML62Q14xx, ML62Q15xx/ML62Q18xx, ML62Q16xx, ML62Q17xx

2024-08-30 - 技术问答

Is a filter required for the output of a class D speaker amplifier? Also, what is the carrier frequency of the class D speaker amplifier?

Basically no filter is needed. The carrier frequency is 512kHz. Related Products: ML22660/Q66x, ML22Q374/Q394

2024-08-30 - 技术问答

What is the relationship between the radio frequency and the internal VCO oscillation frequency?

The following frequency bands are in operation as described below: (Please refer to the design guide for details) 868/920MHz band: VCO oscillates at 1× frequency and PLL is set to 1× frequency. Rx/Tx route also used without frequency division. 426MHz band: VCO oscillates at double frequency and PLL is set to double frequency. Used through Rx/Tx route with 2 frequency division. 169MHz band: VCO oscillates at sixfold frequency and PLL is set to sixfold frequency setting. Used through Rx/Tx route with 6 frequency division. Related Products: ML7345/ML7345D

2024-08-30 - 技术问答代理服务技术支持采购服务

Inductor coil manufacturers tell you the role of inductance coils

Choke effect: The self-induced electromotive force in the inductance coil always counteracts the current change in the coil. The inductance coil has an obstructive effect on the alternating current, and the size of the obstructive effect is called the inductive reactance xl, and the unit is ohm. Its relationship with inductance l and alternating current frequency f is xl=2πfl, and inductors can be mainly divided into high-frequency choke coils and low-frequency choke coils. Tuning and frequency selection: The inductance coil and the capacitor are connected in parallel to form an lc tuning circuit. That is, the natural oscillation frequency f0 of the circuit is equal to the frequency f of the non-AC signal, and the inductance and capacitive reactance of the loop are also equal, so the electromagnetic energy oscillates back and forth between the inductance and the capacitance, which is the resonance phenomenon of the lc loop. At resonance, the inductive reactance and capacitive reactance of the circuit are reversed. The inductive reactance of the total loop current is the smallest and the current is the largest (referring to the AC signal of f="f0"). The lc resonance circuit has the function of selecting the frequency and can An AC signal of frequency f is selected.

2024-10-30 - 技术问答

请问ROHM（罗姆）罗姆车载面板功能安全方案里提到的TCON driver，TCON（U90AL210-M），LVDS Splitter （BU92RTF82）在功能上有什么区别吗，有没有文档描述呢？

您好，您咨询的U90AL210-M已经停产，建议使用BU92RTF82,性能上要更优于前者。

2022-10-10 - 技术问答代理服务技术支持采购服务

For BD37033FV-M,BD37034FV-M,BD37524FS,BD37534FV,BD37543FS, What is the level meter function?

The Level Meter is a circuit that outputs a DC voltage proportional to the magnitude of the signal and holds the peak level of the detected signal. Since the held peak level can be reset by resetting the Level Meter, the transition of the peak level can be monitored by periodically performing a reset. The reset interval should be at least one cycle of the frequency to be monitored.

2024-08-30 - 技术问答

For Analog Audio Processors, For a product that operates with One or Two Positive Power Supplies, is accurate capacitance value required for the Coupling Capacitor of unused input signal terminals?

Accurate capacitance value is not required, but since the HPF is formed by the Coupling Capacitor and the internal input Resistor, the noise frequency bandwidth that can be filtered varies depending on the capacitance value to be connected.

2024-08-30 - 技术问答

ROHM’s Product Longevity Program Enables Worry-free Adoption of ROHM Products

ROHM is working on a Product Longevity Program to eliminate these customer concerns, burdens, and risks as much as possible, allowing customers to select products with confidence.

2024-05-01 - 原厂动态代理服务技术支持采购服务

TO-247-4L半桥评估板产品规格

本资料为ROHM公司生产的TO-247-4L半桥评估板的规格说明书。内容包括安全注意事项、产品概述、主要特性、订购规格、功能框图、电气特性、原理图、物料清单、PCB布局和注意事项。资料强调了使用该评估板时的安全操作和注意事项，并提供了详细的电气参数和功能描述。

ROHM - HALF-BRIDGE EVALUATION BOARD,半桥评估板,P02SCT3040KR-EVK-001,RB168VAM150TR,LTR18EZPFLR470,BD450M2WEFJ-CE2,MCR01MZPF2201,MCR18EZPJ000,MCR01MZPF6801,TFZVTR15B,MCR01MZPF6802,MCR01MZPF4702,CGA4J1X7S1E106KT0Y0N,LTR18EZPF1500,73415-2061,2SCR523EBTL,SM-31W1KOHM,2SAR523EBTL,BU4S11G2TR,SML-D12U8WT86Q,BM6101FV-CE2,MCR01MZPF1502,MCR01MZPF1501,KTR25JZPJ105,OSTTE100104,CGA2B2C0G1H101J050BA,TFZVTR22B,PWR4412-2S-D-R0050F,SCT3040KR,SMTE3-01E-Z,CGA3E3X7R1H474K080AB,MCR03EZPJ000,7808,HK-2-G,B32776G1106K000,CGA9P1X7T2J474M250KC,C5750C0G3A333J280KC,TFZVTR2.0B,CGA3E1X7R1V105K080AC,CGA3E2C0G1H102J080AA,CGA4J1X7R1V475K125AC,BD7F200EFJ-LB2,929647-02-03-EU,SM-3TW10KOHM,SM-31W1KOHM102,C3216X5R1E226M160AB,RF302LAM2STR,RSR030N06TL,EE2225 04398-T256,ESR18EZPJ3R3,ESR25JZPJ100,SML-D12P8WT86L,CGA2B3X7R1H104K,LTR10EVHFSR047,MCR01MZPJ000,LTR100JZPJ683,CGA5L3X5R1H106K160AB,QPC02SXGN-RC,CGA2B3X7R1H104K050BB,RFN1LAM7STR,MCR01MZPF3902,DUT,MCR10EZPJ101,MCR10EZPF2200,MCR01MZPF1002,RB160MM-40TR,MCR01MZPF3301,MCR18EZPJ472,MCR10EZPF4700,RB160VAM-60TR,MCR10EZPF4701,SM-3TW10KOHM103,OSTTE020104,MCR01MZPF3901,BU4S584G2TR,MCR01MZPF8201,BU4SU69G2TR,S-19700A00A-E8,MCR01MZPF10R0,PCB002P REV.D

Dec.2019 - 评估板使用说明 - Rev.001 代理服务技术支持采购服务

How should I connect the product and the uEASE?

Signal lines required for connection vary depending on the product. For details, please refer to "On-Chip Debug Function" of User's Manual for each product. Related Products: ML610(Q)40x, ML610(Q)42x, ML610(Q)47x, ML610(Q)48x, ML610Q10x, ML610Q11x, ML610Q17x, ML610Q30x, ML610Q35x, ML610Q36x, ML610Q38x, ML610Q41x, ML610Q43x, ML610Q46x, ML620Q13x, ML620Q15x, ML620Q416/ML620Q418, ML620Q503H/ML620Q504H/ML620Q506H, ML62Q12xx, ML62Q13xx, ML62Q14xx, ML62Q15xx/ML62Q18xx, ML62Q16xx, ML62Q17xx

2024-08-30 - 技术问答代理服务技术支持采购服务