See datasheet for actual packaging/pinout drawings

Package | PIN:

RTA | 40

Temp:

I (-40 to 85)

ECO Plan:

Green (RoHS & no Sb/Br)

TI Store Price:

Qty.Price
1 - 9 $ 24.46
10 - 24 $ 22.87
25 - 99 $ 22.15
100 - 249 $ 19.69
250 - 499 $ 19.54
500 - 749 $ 18.39
750 - 999 $ 16.50
1000 - 9999 $ 16.45
  View datasheet for LMH1983SQE/NOPB View product folder for LMH1983SQE/NOPB

Adjust your quantity during checkout

LMH1983SQE/NOPB-3G/HD/SD Video Clock Generator with Audio Clock

The LMH1983 is a highly-integrated programmable audio/video (A/V) clock generator intended for broadcast and professional applications. It can replace multiple PLLs and VCXOs used in applications supporting SMPTE serial digital video (SDI) and digital audio AES3/EBU standards. It offers low-jitter reference clocks for any SDI transmitter to meet stringent output jitter specifications without additional clock cleaning circuits.

The LMH1983 features automatic input format detection, simple programming of multiple A/V output formats, genlock or digital free-run modes, and override programmability of various automatic functions. The recognized input formats include HVF syncs for the major video standards, 27 MHz, 10 MHz, and 32/44.1/48/96 kHz audio word clocks.

The dual-stage PLL architecture integrates four PLLs with three on-chip VCOs. The first stage (PLL1) uses an external low-noise 27 MHz VCXO with narrow loop bandwidth to provide a clean reference clock for the next stage. The second stage (PLL2, 3, 4) consists of three parallel VCO PLLs for simultaneous generation of the major digital A/V clock fundamental rates, including 148.5 MHz, 148.5/1.001 MHz, and 98.304 MHz (4 × 24.576 MHz). Each PLL can generate a clock and a timing pulse to indicate top of frame (TOF).

When locked to reference, an internal 10-bit ADC will track the loop filter control voltage. When a loss of reference (LOR) occurs, the LMH1983 can be programmed to hold the control voltage to maintain output accuracy within ±0.5 ppm (typical) of the previous reference. The LMH1983 can be configured to re-synchronize to a previous reference with glitch-less operation.

View datasheet
View product folder
Order SummaryEdit >
TLC5929RGER (1815)$1,179.75
TMP108AIYFFR (1225)$918.75
Subtotal: $2,098.50
Shipping & Handling: -
Total (USD): $2,098.50