NTE7137 PDF даташит
Спецификация NTE7137 изготовлена «NTE Electronics» и имеет функцию, называемую «Integrated Circuit Advanced Monitor Video Controller». |
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Детали детали
Номер произв | NTE7137 |
Описание | Integrated Circuit Advanced Monitor Video Controller |
Производители | NTE Electronics |
логотип |
5 Pages
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NTE7137
Integrated Circuit
Advanced Monitor Video Controller
Description:
The NTE7137 is a monolithic integrated RGB amplifier in a 20–Lead DIP type package designed for
color monitor systems with super VGA performance. It is intended for DC or AC coupling of the color
signals to the cathodes of a CRT.
Features:
D Fully DC Controllable
D 3 Separate Video Channels
D Input Black Level Clamping
D White Level Adjustment for 2 Channels Only
D Brightness Control with Correct Grey Scale Tracking
D Contrast Control for All 3 Channels Simultaneously
D Cathode Feedback to Internal Reference for Cut–Off Control, Which Allows Unstabilized Video
Supply Voltage
D Current Outputs for RGB Signal Currents
D RGB Voltage Outputs to External Peaking Circuits
D Blanking and Switch–Off Input for Screen Protection
D Sync On Green Operation Possible
Absolute Maximum Ratings:
Supply Voltage (Pin7), VP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to +8.8V
Input Voltage Range (Pin2, Pin5, Pin8), Vi . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.1 to VP
External DC Voltage Ranges, Vext
Pin14, Pin17, Pin14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.1 to VP
Pin13, Pin16, Pin19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . No External Voltages
Pin1, Pin3, Pin6, Pin11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.1 to VP
Pin9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.1 to VP+0.7V
Pin10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.1 to VP+0.7V0
Average Output Current (Pin14, Pin17, Pin20), Io . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 50mA
Peak Output Current (Pin14, Pin17, Pin20), IM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 100mA
Total Power Dissipation, Ptot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1200mW
Electrostatic Handling for All Pins (Note 1), Vesd . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±500V
Operating Junction Temperature Range, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –25° to +150°C
Operating Ambient Temperatrure Range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0° to +70°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –25° to +150°C
Thermal Resistance, Junction–to–Ambient (In Free Air), RthJA . . . . . . . . . . . . . . . . . . . . . . . . 65K/W
Note 1. Equivalent to discharging a 200pF capacitor through a 0Ω series resistor.
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Electrical Characteristics: (VP = 8V, TA = +25°C, Note 2 unless otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max
Supply
Supply Voltage Range (Pin7)
Supply Current (Pin7)
Video Signal Inputs
VP
IP
7.2 8.0 8.8
– 46 56
Input Voltage (Black–to–White, Pin2, Pin5, Pin8)
DC Current
VI(b–w)
I2, 5, 8
No Clamping
During Clamping
– 0.7 1.0
–0.1 – +0.1
±50 – –
Brightness Control
Input Voltage Range
Input Resistance to VN1
Black Level Voltage Change at Nominal Gain
(Pin19, Pin16, Pin13)
Input Voltage for Nominal Brightness
Contrast Control (Note 4)
V1
R1
∆Vbl1
VN1
Note 3
V1 = 1V, V3, 11 Open–Circuit
V1 = 6V, V3, 11 Open–Circuit
Pin1 Open–Circuit
1.0 – 6.0
– 50 –
– –80 –
– 240 –
– 2.25 –
Input Voltage Range
Current
Contrast Relative to Nominal Contrast
Tracking of RGB Signals
Gain Control
V6 Note 3
1.0 – 6.0
I6 –5 –1 –
Cv V1 = 6V, V3, 11 Open–Circuit – 3 –
V1 = 4.5V, V3, 11 Open–Circuit – 0 –
V1 = 1V, V3, 11 Open–Circuit
– –20 –
Tr 2.5V < V6 < 6V,
V3, 11 Open Circuit
– 0 0.5
Input Voltage Range
Input Resistance Against VN3, N11
Gain Relative to Nominal Gain
Input Voltage for Nominal Gain
Feedback Input
V3, 11
R3, 11
Gv
VN3, N11
Note 3
V6 = 4.5V, V3, 11 = 6V
V6 = 4.5V, V3, 11 = 1V
Pin3, Pin11 Open Circuit
1.0 – 6.0
– 43 –
– 2–
– –4 –
– 4.6 –
Input Voltage Range
Output Current
Voltage Outputs (Pin19, Pin16, Pin13)
V3, 11 Note 5
I18, 15, 12 During Output Clamping
tbn 5.8 tbn
–1.5 –1.0 –0.1
Signal Output Voltage (Black–to–White Value)
Black Level Voltage
VO(b–w)
Vbl
V3, 11 Open, V6 = 4.5V,
VI(b–w) = 0.7V
During Output Clamping,
Depending on Black Level
Adjustment, Note 6
– 0.8 –
0.3 – 1.0
During Switch–Off
– 0.1 0.3
Signal–to–Noise Ratio
S/N
– – 44
Unit
V
mA
V
µA
µA
V
kΩ
mV
mV
V
V
µA
dB
dB
dB
dB
V
kΩ
dB
dB
V
V
µA
V
V
V
dB
Note 2. All voltages measured to GND (Pin4).
Note 3. Typical range is 1 to 6V, the range can be increased (e.g. 0 to 7V) to slightly increase the
control range.
Note 4. Open contrast control pin leads to undefined contrast setting.
Note 5. The internal reference voltage can be measured at Pin18, Pin15, and Pin12 during output
clamping in closed feedback loop.
Note 6. Minimum guaranteed control range, the typical minimum black level voltage is 0.1V.
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Electrical Characteristics (Cont’d): (VP = 8V, TA = +25°C, Note 2 unless otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Frequency Response at Voltage Outputs
Gain Decreases by Frequency Response at
Pin19, Pin16, Pin13
Gvf 70MHz
– – –3 dB
Rise Time at Voltage Output
(Pin19, Pin16, Pin13)
trO 10% to 90% Amplitude,
Input Rise Time = 1ns
– 4.5 5.0 ns
Current Outputs (Pin20, Pin17, Pin14)
Signal Current (Black–to–White)
IO(b–w)
With Peaking, Note 7
– 50 – mA
– – 100 mA
HF Saturation of Output Transistors
Threshold Voltages (Note 8)
V20–19,
17–16,
14.13
IO = 50mA
IO = 100mA
– – 2.0 V
– – 2.2 V
Threshold for Horizontal Blanking
(Blanking, Output Clamping)
V9
1.2 1.4 1.6 V
Threshold for Switch–Off
(Blanking, Minimum Black Level, No
Output Clamping)
5.8 6.5 6.8 V
Input Resistance Referenced to GND
Delay Between Horizontal Blanking Input
and Output Signal Blanking
Rg
td9
50 80 110 kΩ
– 35 60 ns
Threshold for Vertical Blanking
(Blanking, No Input Clamping)
V10
1.2 3.0 3.5 V
Threshold for Clamping
(Input Clamping, No Blanking)
2.6 3.0 3.5 V
Input Current
Rise and Fall Time for Clamping Pulse
Clamping Pulse Width
Delay Between Vertical Blanking Input
and Output Signal Blanking
I10
tr, f10
tw10
td10
Transition 1 to 3.5V
V10 = 3V
–3 –1 – µA
– – 75 ns/V
0.6 – – µs
– 300 – ns
Note 2. All voltages measured to GND (Pin4).
Note 7. The external RC combination at Pin19, Pin16 and Pin13 enables peak currents during transients.
Note 8. The internal threshold voltages are derived from an internally stabilized voltage. The internal
pulses are generated if the input pulses are higher than the thresholds.
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