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 Introduction：
ACM323A is an ATSC receiver module which receives HDTV
and SDTV terrestrial broadcasts and displays them on regular
TVs or HDTV.
It tunes and decodes all 18 approved ATSC digital television
formats (SDTV and HDTV). It has 480i, 480p, 720p, and 1080i
selectable outputs to match to your television's optimum
viewing capability.
Audio outputs include Dolby® Digital and Stereo L/R,
I2S. A 7-day electronic program guide (EPG) helps you schedule
your upcoming week of entertainment.
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Features：
- Digital, off-air receiver (ATSC)
- Tunes and Decodes all 18 approved ATSC DTV Broadcast
formats
- Selectable DTV analog HD Output resolution (480i/480p/720p/1080i)
- Standard definition NTSC 480i output
- Off-air antenna; RF input jack: (75Ohm, F-type)
- Aspect ratio control in 4:3 and 16:9 mode
- Component video output; S-video output; Composite
video output
- Dolby® Digital (AC3) optical output; Stereo
Analog & Digital I2S output; MTS Analog output
- On-Screen Menu
- User profile control for storing favorite settings
and channels
- Advanced Electronic Program Guide
- Program Reservation
- V-CHIP & Closed Captioning from ATSC Source
- Support English, French, Spanish multi-languages
- Software update through USB interface
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Specifications：
>> RF Inputs
| Digital off-air (ATSC) |
ATSC reception of broadcast channels 2-69 |
| Input Impedance |
75 F-Connector |
| Bandwidth |
6 MHz |
| Demodulator |
8VSB |
| ATSC Sensitivity |
Min. -81dBm at picture smoothly
Max. -8dBm at picture smoothly |
>> Video
| Formats |
MPEG-2 Compatible MP@HL |
| Aspect Ratio |
4:3, 16:9 |
| Picture Resolution |
1080i/720p/480p
Selectable + 480i |
| Output
–Analog Video |
YPbPr/RGB Component signals
Y Level: 1Vpp 10% @ external 75Ohm impedance, DC Couple
Pb Level: 0.7Vpp 10% @ external 75Ohm impedance, DC
Couple
Pr Level: 0.7Vpp 10% @ external 75Ohm impedance, DC
Couple |
>> Audio
| Decode |
MPEG-1 (Layer I&II)
PCM, Dolby digital (AC-3) |
| Sampling Rate |
32 KHz, 44.1 KHz, 48KHz |
| Output |
Stereo, mono-LR, MTS, SPDIF, I2S |
| Left/Right Channel
Level |
1Vpp 10% @ internal 10KOhm impedance, AC couple |
>> Application & Software
| On-Screen Menu |
Supported |
| Graphical Menu |
256 indexed true color |
| OSD |
Transparency setting 16 levels |
| Closed Caption |
EIA-708A & EIA-608B |
| V-CHIP |
MPAA, TV Rating, EIA-766 |
| Electronic Program
Guide |
7-day EPG with program reservation |
>> Physical & Hardware
| Processor |
BCM3540 |
| DDR SDRAM |
64MB |
| Flash ROM |
16MB |
| Tuner |
DTT7602 |
| Dimensions |
W(170 mm) x D(125 mm) x H(40 mm) |
| Power Supply |
Input |
+7 ~ +14VDC (Typical +12VDC) |
| Power
Consumption |
Typical |
12 Watts |
| Maximum |
14.4 Watts |
>> Connector Controller Interface
| RS-232 |
2 TXD/RXD 2-wired, 9600bps (TTL)
Console mode without flow control |
| DTV_Reset |
2ms, Active Low |
| GPIO1 |
Reserved for interactive with DTV |
| GPIO2 |
Reserved for interactive with DTV |
| GPIO3 |
Reserved for interactive with DTV |
| GPIO4 |
Reserved for interactive with DTV |
>> Environments
| Operating Temperature |
32°F ~ 131°F (0°C ~ 40°C) |
| Storage Temperature |
-4°F ~ 158°F (-20°C ~ 70°C) |
| Humidity |
20% ~ 90% Non-condensing |
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Module > ACM-323 
