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Panasonic |
Prescaler
DN8506S
Prescaler IC for TV and VCR tuners
s Overview
The DN8506S is a 1.1GHz prescaler IC for television
and VCR tuners. It is made up of ECL flip-flop circuits
divided by 128 and 136.
s Features
• Power dissipation: 5 V, 26 mA
• The dividing ratios of 1/128, 1/136
• ECL-level output
s Applications
• Television, VCR
Unit: mm
1
8
45
0.3
4.2±0.3
6.5±0.3
SOP008-P-0225A
s Block Diagram
In 2
Ref. 8
RF amp.
TQ
DQ
TQ
DQ
PSC 7
PSC block
N.C. 3
N.C. 6
TQ
DQ
TQ
DQ
TQ
DQ
TQ
DQ
VCC
1 VCC
TQ
DQ
4 GND
GND
5 Out
Output amp.
1
DN8506S
s Pin Descriptions
Pin No.
Description
1 VCC (5 ± 0.5 V)
2 Input
3 N.C.
4 GND
5 Output
6 N.C.
7 PSC
8 Ref. (bias)
Prescaler
s Absolute Maximum Ratings
Parameter
Symbol
Rating
Supply voltage
VCC 6
Input voltage
VI 2.5
Power dissipation
PD 361
Operating ambient temperature *
Topr
−20 to +80
Storage temperature *
Tstg −55 to +125
Note) *: Except for the operating ambient temperature and storage temperature, all ratings are for Ta = 25°C.
s Recommended Operating Range
Parameter
Supply voltage
Symbol
VCC
Range
4.5 to 5.5
Unit
V
V[p-p]
mW
°C
°C
Unit
V
s Electrical Characteristics at Ta = 25°C
Parameter
Symbol
Conditions
Supply current
Output amplitude
Input voltage *
High-level input voltage
ICC VCC = 5.0 V
VO VCC = 5.0 V, f = 1 GHz, 0 dBm
VIN1 VCC = 5.0 V,
fIN = 150 MHz to 900 MHz
VIN2 VCC = 5.0 V,
fIN = 80 MHz to 1 100 MHz
VIH PSC pin
Low-level input voltage
VIL PSC pin
Note) *: The input level that allows a stipulated frequency-devided output.
Min Typ Max Unit
26 35 mA
0.8 1.2 1.5 V[p-p]
−24 dBm
40 mV[p-p]
−18 dBm
80 mV[p-p]
0.7 ×
VCC
0.3 ×
VCC
V
V
2
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