small size hd cable tv receiver

Main Frequency:

1GHz

FLASH Memory:

1/2Gbit

DDR Memory:

2/4Gbit

Tuner:

TDA18250B

Demo Chip:

Built-in

Composite   Audio

Audio output Level:

±4dBuv

Signal Distortion:

≤1.2%

Amplitude frequency performance:

+1/-2dB(60Hz-18kHz)

Volume Control:

32 Level Range

L/R Crosstalk:

≤-70dB

Audio S/N(unweighted):

≥70dB

L/R Phase error:

≤0.2 rad(60Hz-18Hz)

L/R Level error:

≤0.5dB(60Hz-18kHz)

Composite Video

Video output level:

700±30mVp-p

Video synchronous Level:

300±20mVp-p

Differential gain:

≤5.5%p-p

Differential phase:

≤3.5rad

Video S/N(weighted):

≥56dB

Luminance Nonlinearity:

4.0/0%

Chr/Lum Gain Inequality:

±5%

Chr/Lum Delay Inequality:

≤14ns

K coefficient:

≤2%

Line-synchronization Ieading jitter:

≤13

Amplitude frequency performance:

0.5/0.4dB(≤4.8MHz);0.5/-0.9dB(≥5.5MHz)

Input   parameters

Input frequency range:

47MHz~1GHz

Channel bandwidth:

8MHz

RF input impedance:

75Ω

RF input reflection loss:

≥8dB

Demodulation:

16/32/64/128/256   QAM

Symbol rate:

3.6~6.952Mbaud

Min input Level:

≤38dBuv(64QAM);≤43dBuv(256QAM)

Max input level:

≥100dBuv(64QAM);≥100dBuv(256QAM)

C/N threshold:

≤24dB (64QAM);≤31dB (256QAM)

Frequency capture range:

±600kHz(64QAM);±150kHz(256QAM)

Decoder

Video decoding format:

H.264BP/MP/HP@level4.1;MPEG-1;

MPEG-2MP@HL;MPEG-4 SP@L0-3

Image decoding format:

JPEG   Baseline;MJPEG Baseline;PNG

Aspect ratio

4:3;16:9

Video output:

PAL/NTSC self   adaptive

Video resolution:

480i;480p;576i;576p;1080i;1080p

Audio output

Right/left   sound channel/stereo/mono

Interface

IF input:

1×F type(Female)

IF loopout

1×IEC169-1 Male

Analog audio output

2×RCA

Analog vedio output

1×RCA

Y PbPr output:

Group1,RCA   interface

HDMI interface:

1×HDMI1.4

Digital audio:

1×S/PDIF(fiber)

RS232interface:

1×DB-9(Female)

USB:

2×USB2.0

Internet port:

1×RJ45(10/100M   self-adaptive interface)

IR interface:

1×AUX

IC CA card:

1×ISO7816

Front panel

LED display:

Power,standby

Channel display:

4-digit

Front panelkey:

Power,channel+/-,volume+/-,ok,menu

RF receiver

38KHz,NEC   encoding

Power

Input voltage:

220V AC

Input frequency:

50Hz

Standby power consumption:

＜1W

Power consumption:

＜10W