Sharp LC-60LE751EK (serv.man3) Service Manual ▷ View online
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Suitable for low power design: 140 mW (typical, 36 MHz IF sampling mode).
Dual 12-bit ADCs: accept 1st IF, low IF, or zero-IF inputs.
DVB-T channel bandwidth: 5, 6, 7, 8 MHz.
DVB-C symbol rate: 1 to 7.2 MBaud.
DSP-based synchronization and control with embedded ROM code avoids need for code download at startup.
Supports patch code downloads for in-field upgradeability.
Independent AGC controls (for IF & RF), plus RSSI measurement.
ACI filtering: fixed 8 MHz SAW filter even for 7 MHz channel.
Advanced performance for SFN networks.
Impulsive noise protection algorithm.
Ultra fast automatic UHF/VHF band scanning (QuickScan).
Master TS output modes, parallel or serial (with tri-state function).
Slave TS parallel output: external device polls data from an embedded FIFO, providing a seamless interface to any USB
controller.
controller.
On-chip PID filtering to reduce TS output bit rate.
Up to six GPIOs.
Two 5 V tolerant I2C control buses (host-side, tuner-side) with on-chip I2C repeater.
4, 16, 20, 24, or 27 MHz clock/crystal reference.
3.3V & 1.2 V power supplies only.
IC1103*: DVB-T/C/S/S2 Demodulator (Terrestial and Satellite).
Part number: Si2167-B20-GM (SILICON LABS)
Sharp code: RH-IXD523WJZZQ
Part number: Si2167-B20-GM (SILICON LABS)
Sharp code: RH-IXD523WJZZQ
http://www.silabs.com/Support%20Documents/TechnicalDocs/Si2167-B20-short.pdf
The Si2167-B20 integrates DVB-T, DVB-C, DVB-S, DVB-S2 (AMC-compliant), and DSS digital demodulators into a single
CMOS chip for terrestrial, cable, and satellite TV standards. Leveraging Silicon Labs' proven digital demodulation architecture,
the Si2167-B20 achieves superior reception performance for each media while minimizing front-end design complexity and cost.
Connecting the Si2167-B20 to a terrestrial and cable hybrid TV tuner, such as Silicon Labs’ Si217x, results in a high
performance and cost optimized TV front-end solution.
CMOS chip for terrestrial, cable, and satellite TV standards. Leveraging Silicon Labs' proven digital demodulation architecture,
the Si2167-B20 achieves superior reception performance for each media while minimizing front-end design complexity and cost.
Connecting the Si2167-B20 to a terrestrial and cable hybrid TV tuner, such as Silicon Labs’ Si217x, results in a high
performance and cost optimized TV front-end solution.
DVB-T and DVB-C demodulators are enhanced versions of proven and broadly used Si2167-A10 and Si2169/68 Silicon Labs
devices. Furthermore, ITU J.83 Annex B is also supported for US and South American cable networks. The IF input supports
standard IF (36 MHz) or low-IF.
devices. Furthermore, ITU J.83 Annex B is also supported for US and South American cable networks. The IF input supports
standard IF (36 MHz) or low-IF.
For DVB-T and DVB-S/DSS, an innovative and advanced FEC decoding scheme is implemented resulting in higher
performance.
performance.
The satellite demodulation functionality allows demodulating widely deployed DVB-S, DIRECTV™ (DSS) legacy standards,
and new generation DVB-S2 satellite broadcast. A zero-IF interface allows for a seamless connection to market proven satellite
silicon tuners. Constant Coding Modulation (CCM), QPSK/8PSK demodulation schemes and broadcast profile are the main
specifications of the DVB-S2 demodulator. Silicon Labs' innovative LDPC and BCH decoding architecture delivers best-in-class
reception while exhibiting low power dissipation.
and new generation DVB-S2 satellite broadcast. A zero-IF interface allows for a seamless connection to market proven satellite
silicon tuners. Constant Coding Modulation (CCM), QPSK/8PSK demodulation schemes and broadcast profile are the main
specifications of the DVB-S2 demodulator. Silicon Labs' innovative LDPC and BCH decoding architecture delivers best-in-class
reception while exhibiting low power dissipation.
The Si2167-B20 offers an on-chip blind scanning algorithm for DVB-S/S2 and DVB-C standards (as well as blind lock
function). It also integrates DiSEqC™ 2.0 LNB interface for satellite dish control.
function). It also integrates DiSEqC™ 2.0 LNB interface for satellite dish control.
MAJOR ICs INFORMATION ( continued )
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The Si2167-B20 programmable Transport Stream interface provides a flexible range of output modes and is fully compatible
with all MPEG decoders or conditional access modules to support any customer application.
with all MPEG decoders or conditional access modules to support any customer application.
Features:
DVB-T (ETSI EN 300 744).
o COFDM demodulator and enhanced FEC decoder.
o NorDig Unified 2.2.1, D-Book 7.0 compliant.
o Supports all C.R., G.I., LP, and HP streams.
DVB-C (ETSI EN 300 429) / ITU J.83 Annex A/B/C.
o QAM demodulator and FEC decoder.
o 1 to 7.2 MSymbol/s.
o C-Book compliant.
DVB-S2 (ETSI EN 302 307 & TR102-376).
o QPSK/8PSK demodulator and FEC decoder.
o Broadcast profile: CCM, 64800 bits frame, single TS.
o 1 to 45 MSymbol/s (optimized for 2 to 32 MSymbol/s).
o DIRECTV™ AMC compatible.
DVB-S (ETSI EN 300 421).
o QPSK demodulator and enhanced FEC decoder.
o 1 to 45 MSymbol/s.
DIRECTV™ DSS compliant.
DiSEqC™ 2.0 interface and Unicable support.
I2C serial bus interfaces (master and host).
Three ADCs with independent IF and ZIF (differential) inputs for terrestrial/cable and satellite.
GPIOs and multi-purpose ports for independent AGCs (up to 4) to control satellite and T/C tuners.
Firmware control for upgradeability.
Flexible TS interface with serial or parallel single output.
Fast lock times for all media.
Only two power supplies: 1.2 and 3.3 V.
IC1103*: DVB-T/C/T2 Demodulator.
Part number: Si2168-A30-GM (SILICON LABS)
Sharp code: RH-IXD525WJZZQ
Part number: Si2168-A30-GM (SILICON LABS)
Sharp code: RH-IXD525WJZZQ
http://www.silabs.com/Support%20Documents/TechnicalDocs/Si2168-A20-short.pdf
MAJOR ICs INFORMATION ( continued )
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The Si2168 integrates DVB-T2, DVB-T, and DVB-C digital demodulators into a single advanced CMOS technology mixed-
signal die for next generation terrestrial and legacy cable TV standards. Leveraging Silicon Labs' proven digital demodulation
architecture, the Si2168 achieves excellent reception performance while significantly minimizing front-end design complexity,
cost, and power dissipation. Connecting the Si2168 to a terrestrial and cable hybrid TV tuner or digital only tuner, such as
Silicon Labs’ Si2176/56/46 devices, results in a high performance and cost optimized TV front-end solution.
Silicon Labs internally developed DVB-T2 demodulator can accept a standard IF (36 MHz) or low-IF input and support all
modes specified by the DVB-T2 standard. Main features of the DVB-T2 mode are 256 QAM with rotated constellations, SISO
and MISO support, FEF management, fully autonomous signal acquisition including automatic L1 signalling parsing, 600 kHz
acquisition range, support for all pilot patterns, and DVB-T/T2 auto-detection. The DVB-T and DVB-C demodulators are
enhanced versions of proven and broadly used Si2161/63/65/67 Silicon Labs devices.
The Si2168 offers an on-chip blind scanning algorithm for the DVB-C standards as well as blind lock. The Si2168 can use a
crystal, as a reference clock, or be driven by an external clock signal from the tuner.
The Si2168 programmable transport stream interface provides a flexible range of output modes and is fully compatible with all
MPEG decoders or conditional access modules to support any customer application.
signal die for next generation terrestrial and legacy cable TV standards. Leveraging Silicon Labs' proven digital demodulation
architecture, the Si2168 achieves excellent reception performance while significantly minimizing front-end design complexity,
cost, and power dissipation. Connecting the Si2168 to a terrestrial and cable hybrid TV tuner or digital only tuner, such as
Silicon Labs’ Si2176/56/46 devices, results in a high performance and cost optimized TV front-end solution.
Silicon Labs internally developed DVB-T2 demodulator can accept a standard IF (36 MHz) or low-IF input and support all
modes specified by the DVB-T2 standard. Main features of the DVB-T2 mode are 256 QAM with rotated constellations, SISO
and MISO support, FEF management, fully autonomous signal acquisition including automatic L1 signalling parsing, 600 kHz
acquisition range, support for all pilot patterns, and DVB-T/T2 auto-detection. The DVB-T and DVB-C demodulators are
enhanced versions of proven and broadly used Si2161/63/65/67 Silicon Labs devices.
The Si2168 offers an on-chip blind scanning algorithm for the DVB-C standards as well as blind lock. The Si2168 can use a
crystal, as a reference clock, or be driven by an external clock signal from the tuner.
The Si2168 programmable transport stream interface provides a flexible range of output modes and is fully compatible with all
MPEG decoders or conditional access modules to support any customer application.
Features:
DVB-T2 (ETSI EN 302 755).
o
COFDM demodulator and FEC (LDPC + BCH) decoder.
o
Bandwidth: 1.7, 5, 6, 7 or 8 MHz (and extended BW).
o
Supports up to 255 PLP(s) and outputs the data PLP plus the common PLP on a single TS.
o
NorDig-T2 Unified v2.2.1 and D-Book 7.0 compliant.
o
Firmware control (loaded in ROM).
DVB-T (ETSI EN 300 744).
o
COFDM demodulator and FEC decoder.
o
NorDig Unified 2.2.1, D-Book 7.0 compliant.
DVB-C (ETSI EN 300 429) / ITU J.83 Annex A/C.
o
QAM demodulator and FEC decoder.
o
1 to 7.2 MSymbol/s.
o
C-Book compliant.
I2C serial bus interfaces (master and host).
GPIOs and multi-purpose ports for independent AGCs.
Firmware control for upgradeability.
Flexible TS interface with serial or parallel single output.
Fast lock times for all standards including DVB-T2.
Only two power supplies: 1.2 and 3.3 V.
MAJOR ICs INFORMATION ( continued )
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IC1301: LNBs supply and Control IC
.
Part number: LNBH23QTR (ST MICRO)
Sharp code: RH-IXD310WJZZY
Sharp code: RH-IXD310WJZZY
http://www.st.com/st-web-ui/static/active/en/resource/technical/document/datasheet/CD00154977.pdf
Intended for analog and digital satellite receivers/sat-TV, sat-PC cards, the LNBH23 is a monolithic voltage regulator and
interface IC, assembled in PowerSSO-24 ePAD and QFN32 (5 x 5 mm.) ePAD, specifically designed to provide the 13/18 V
power supply and the 22 kHz tone signaling to the LNB down-converter in the antenna dish or to the multi-switch box. In this
application field, it offers a complete solution with extremely low component count, low power dissipation together with simple
design and I²C standard interfacing.
interface IC, assembled in PowerSSO-24 ePAD and QFN32 (5 x 5 mm.) ePAD, specifically designed to provide the 13/18 V
power supply and the 22 kHz tone signaling to the LNB down-converter in the antenna dish or to the multi-switch box. In this
application field, it offers a complete solution with extremely low component count, low power dissipation together with simple
design and I²C standard interfacing.
Features:
Complete interface between LNB and I²C bus.
Built-in DC-DC converter for single 12 V supply operation and high efficiency (typ. 93% @ 0.75A), with
integrated NMOS.
integrated NMOS.
Selectable output current limit by external resistor.
Compliant with main satellite receiver systems specifications.
New accurate built-in 22 kHz tone generator suits widely accepted standards.
Fast oscillator start-up facilitates DiSEqC™ encoding.
Built-in 22 kHz tone detector supports bidirectional DiSEqC™ 2.0.
Very low-drop post regulator and high efficiency step-up PWM with integrated power NMOS allow low
power losses.
power losses.
Two output pins suitable to by-pass the output R-L filter and avoid any tone distortion (R-L filter as per
DiSEqC™ 2.0 specs).
DiSEqC™ 2.0 specs).
Overload and over-temperature internal protections with I²C diagnostic bits.
Output voltage and output current level diagnostic feedback by I²C bits.
LNB short circuit dynamic protection.
± 4 kV ESD tolerant on output power pins.
MAJOR ICs INFORMATION ( continued )
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