LMH0397
- User-configurable adaptive cable equalizer or cable driver with integrated reclocker
- Supports ST-424 (3G), ST-292 (HD), and ST-259 (SD)
- Compatible with DVB-ASI and AES10 (MADI)
- Integrated reclocker locks to SMPTE rates of 2.97 Gbps, 1.485 Gbps, or divide-by-1.001 subrates and 270 Mbps
- On-Chip 75-Ω termination and return loss compensation network
- EQ (equalizer) mode:
- Adaptive cable equalizer with integrated reclocker
- 100-Ω Output driver with de-emphasis
- Reclocked 75-Ω loop-through output
- EQ mode cable reach
(Belden 1694A, SDI_OUT Disabled):- 200 m at 2.97 Gbps
- 300 m at 1.485 Gbps
- 600 m at 270 Mbps
- CD (cable driver) mode:
- Dual differential output cable drivers with integrated reclocker
- Adaptive PCB input equalizer
- Reclocked 100-Ω loopback output
- Automatic pre-emphasis and slew rate control on 75-Ω outputs
- Polarity inversion on 75-Ω and 100-Ω outputs
- Automatic power save in absence of input signal
- Power dissipation: 25 mW (typical)
- Power-down control through ENABLE pin
- Single 2.5-V supply
- EQ mode power dissipation: 275 mW (typical)
- CD mode power dissipation: 290 mW (typical)
- Programmable through pins, SPI, or SMBus interface
- –40°C to +85°C Operating temperature range
- 5-mm × 5-mm, 32-Pin WQFN package
- Pin compatible with the LMH1297 for easy upgrade to 12G-SDI
The LMH0397 is a 3G-SDI 75-Ω bidirectional I/O with integrated reclocker. This device can be configured either in input mode as an adaptive cable equalizer or in output mode as a dual cable driver, allowing system designers the flexibility to use a single BNC either as an input or output port to simplify HD-SDI video hardware designs. The integrated reclocker locks to all supported SMPTE data rates up to 2.97 Gbps in both modes. The bidirectional I/O has an on-chip 75-Ω termination and return loss compensation network that meets the stringent SMPTE return loss requirements.
An additional 75-Ω driver output allows the LMH0397 to support a variety of system functions. In EQ (Equalizer) Mode, this second 75-Ω driver can be used as a loop-through output. In Cable Driver (CD) Mode, this 75-Ω driver can be used as a second fan-out cable driver. The host-side 100-Ω driver can also be used as a loopback output in CD Mode for monitoring purposes.
The on-chip reclocker attenuates high-frequency jitter and fully regenerates the data using a clean, low-jitter clock. The reclocker has a built-in loop filter and does not require any input reference clock. The LMH0397 also has an internal eye opening monitor and a programmable pin for CDR lock indication, input carrier detect, or hardware interrupts to support system diagnostics and board bring-up.
The LMH0397 is powered from a single 2.5-V supply. The device is offered in a small 5-mm × 5-mm, 32-pin WQFN package. The LMH0397 is also pin-compatible with the LMH1297.

추가 정보 요청
LMH0397 프로그래밍 가이드 및 IBIS-AMI 모델을 사용할 수 있습니다. 지금 요청
기술 자료
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
LMH1297EVM — LMH1297 12-G 양방향 I/O 평가 모듈
PSPICE-FOR-TI — TI 설계 및 시뮬레이션 툴용 PSpice®
TI 설계 및 시뮬레이션 환경용 PSpice는 기본 제공 라이브러리를 이용해 복잡한 혼합 신호 설계를 시뮬레이션할 수 있습니다. 레이아웃 및 제작에 (...)
TINA-TI — SPICE 기반 아날로그 시뮬레이션 프로그램
패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
---|---|---|
WQFN (RTV) | 32 | Ultra Librarian |
주문 및 품질
- RoHS
- REACH
- 디바이스 마킹
- 납 마감/볼 재질
- MSL 등급/피크 리플로우
- MTBF/FIT 예측
- 물질 성분
- 인증 요약
- 지속적인 신뢰성 모니터링
- 팹 위치
- 조립 위치
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.