8.3. Specifications

Signal System

NTSC

 

 

 

Scanning System

2 : 1 Interlace

 

 

 

 

Horizontal Scan Frequency

15.734 KHz

 

 

 

 

Vertical Scan Frequency

59.94 Hz

 

 

 

Image Sensor

1/4 Inch Micro Lens IT CCD

 

 

 

Total Pixels

811 (H) x 508 (V)

410K

 

 

 

Effective Pixels

768 (H) x 494 (V)

380K

 

 

Horizontal Resolution

580 TV Lines (BW 600 TV Lines),

 

Sharpness Max.

 

 

 

S/N Ratio

More than 50db (AGC off)

 

 

Lens

27x Zoom Video AF

 

(f1.6 (W), f3.7 (T) f = 3.6 ~ 97.2mm)

 

 

 

Angle of View (HOR)

55.21° ~ 2.12°

 

 

 

Minimum Illumination

Day Mode: 0.5 lux (30 IRE) / Night

 

Mode: 0.1 lux (30 IRE) / DSS (128

 

FLD) Mode: 0.0005 lux (30 IRE)

 

 

 

Synchronization

Internal

 

 

 

Signal Output

1 V p-p Composite Output with 75Ω

 

Terminated

 

 

 

Power Consumption

12 V DC, 0.5 amps / Max 6 watts

 

 

 

Dimensions (W x H x D)

65 x 62 x 122

 

 

 

 

Weight

Approx 325 grams

 

 

 

 

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Hitachi vl-21a instruction manual Signal System, Ntsc