Part Number: LMH1983 Hi team,
My customer mentioned It takes over 30 sec to lock PLL after TOF alignment. Is this normal behavior ?
attached the customer settings.
LMH1983 settings.xlsx
Part Number: LMH1983 Hello, When LVCMOS single-end input to XOin, the datasheet states to bias XOin- to mid-supply with 0.1uF bypass capacitor. The 8.2 Functional block Diagram also follows this. However, Figure 3.3 is different. The XOin- is not biased…
Part Number: LMH1983
Hi,
1. In the following thread, the data for the min value of TOF2/3 and the min/max value of TOF1/4 at tDx were unknown. Is it still unknown?
https://e2e.ti.com/support/interface-group/interface/f/interface-forum/789742/lmh1983-frame…
Part Number: LMH1983 In the device control register, address 0x05, the setting 11'b is shown as "reserved" for the PLL1_Mode. Can you explain the effect of using the LMH1983 in "reserved" mode. Someone on our team happened upon…
Part Number: LMH1983 Hi all Would you mind if we ask LMH1983? As the background of this question, usually we use divider resistance = 3k ohm as follows; However the customer would like to use 1.0kohm. However the customer would like to use 1.0kohm. If you…
Part Number: LMH1983
Dear Technical Support Team,
There is following VCXO on my board.
DSV321SV-27.000MHz
Datasheet recommendation is 357LB3C027M0000 and described two spec.
On the other hand, DSV321SV&s s pecification doesn&t have APR.
①Frequency…
Hi,
lmh1983 shows LOST_HSYNC when NG.
Reg 0x00=0xC6
What the meaning of the description?
I didn't find HSYNC_MISSING and no_h_during_v.
HSYNC_MISSING = LOST_HSYNC?
----
Set if HSYNC_MISSING is high wile no_h_during_v is low. Remains set until read…
Part Number: LMH1983 Other Parts Discussed in Thread: LMH1981 Noel-san,
Sorry to be stikky, but please allow me to confirm bellow.
The skew among (H,V,F)IN from LMH1981 to LMH1983 through FPGA is expected to be about 2.0 ns.
Above condition, will the…
Part Number: LMH1983 Are ferrite beads required on VDD_PLLx and VDD_CLKoutx? EVM has ferrite beads on L6-L11, while datasheet Figure 32 on pg43 does not show any.