Answered

• LMH1983: Regarding the internal registers of the LMH1983

  

  Kyohei

  Resolved

  Part Number: LMH1983 Tool/software: Hi team, Please tell me about the TOF2_INIT in the internal register address 0x12 Alignment Control bit0. Is my understanding correct that TOF2_INIT should be set to '1' only when TOF2_Align_Mode is set to "01"…

  • Resolved

  • 3 months ago
  • Clock & timing
  • Clock & timing forum

• LMH1983: PLL1 of LMH1983 cannot be locked

  

  Vayne Li

  Part Number: LMH1983 Other Parts Discussed in Thread: LMH1981 Tool/software: Hi Teams, The customer solution is LMH1981+LMH1983. The current problem is that 1983 can recognize the signal format of genlock input, where no ref is low and no lock is high…

  • 3 months ago
  • Clock & timing
  • Clock & timing forum

• LMH1983: Regarding the operation of the alignment mode of LMH1983

  

  Kyohei

  TI Thinks Resolved

  Part Number: LMH1983 Tool/software: Hi team, Regarding the operation of the alignment mode of LMH1983, is the following understanding correct? Alignment Mode TOFx_INIT='1' TOFx_INIT='0' 0 (Auto Align) immediately align Alignment…

  • 3 months ago
  • Clock & timing
  • Clock & timing forum

• LMH1983: How to use LMH1983

  

  user6438649

  TI Thinks Resolved

  Part Number: LMH1983 Tool/software: To whom it may concern I have some questions. Please answer my questions. My application: I am inputting H and V to the LMH1983 and expecting it to output 27MHz clock in genlock mode. When in NTSC, H is 1716 smaple…

  • 8 months ago
  • Clock & timing
  • Clock & timing forum
Answered

• LMH1983: Regarding the lock time of LMH1983

  

  user6438649

  Resolved

  Part Number: LMH1983 Tool/software: To whom it may concern I have a few questions about LMH1983. The LMH1983 has a NO_LOCK signal that indicates the LOCK state. I would like to know the maximum number of seconds this NO_LOCK signal will be asserted…

  • Resolved

  • 8 months ago
  • Clock & timing
  • Clock & timing forum

• LMH1983: Questions about LMH1983

  

  user6438649

  TI Thinks Resolved

  Part Number: LMH1983 Tool/software: To whom it may concern I am considering the specifications of LMH1983. I have a few questions. How to use: I will give HD and VD in HDTV format to LMH1983. I would like the LMH1983 to output 148.5/1.001MHz in…

  • 11 months ago
  • Clock & timing
  • Clock & timing forum
Answered

• LMH1983: LMH1983 PLL4 at 48MHz

  

  Jerry Hodges

  Resolved

  Part Number: LMH1983 Tool/software: I want to generate 48MHz clock on PLL4 with 27MHz input from PLL1. Is PLL4 capable of being setup to operate at 48MHz? I've reviewed AN2108 example to generate 44.1KHz but the values that were calculated and presented…

  • Resolved

  • over 1 year ago
  • Clock & timing
  • Clock & timing forum
Answered

• LMH1983: Genlock PLL4

  

  Miguel Holguin

  Resolved

  Part Number: LMH1983 Tool/software: May PLL4 be genlocked? We know PLL1 does but we need the frequency from PLL4.

  • Resolved

  • 3 months ago
  • Clock & timing
  • Clock & timing forum
Answered

• LMH1983: Check the electrical characteristics of the init pin

  

  user6377398

  Resolved

  Part Number: LMH1983 Tool/software: Could you please tell me the electrical characteristics of the init pin? VIL(max)?V@Iin=±?mA Vih(min)?V@ Iin= ±?mA

  • Resolved

  • 4 months ago
  • Clock & timing
  • Clock & timing forum

• LMH1983: Issues with PLL1 GenLocking

  

  Miguel Holguin

  Part Number: LMH1983 Other Parts Discussed in Thread: LMH1981 Tool/software: We are inputting NTSC to the LMH1983, only H Sync(15.75k) and V Sync(59.97) to achieve GenLock; we are not using F Sync. However when we read register 0x02, we are getting 0xE0…

  • 6 months ago
  • Clock & timing
  • Clock & timing forum

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