MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
1.1GHz Low Power Dual Modulus Prescaler
With On-Chip Output Termination
The MC12022TSA can be used with CMOS synthesizers requiring positive edges to trigger internal counters such as Motorola's MC145XXX series in a PLL to provide tuning signals up to 1.1GHz in programmable frequency steps. This device is a reduced current drain version of the MC12022A/B with the addition of on±chip output termination.
The MC12022TSB can be used with CMOS synthesizers requiring negative edges to trigger internal counters.
A Divide Ratio Control (SW) permits selection of a 64/65 or 128/129 divide ratio as desired.
The Modulus Control (MC) selects the proper divide number after SW has been biased to select the desired divide ratio.
NOTE: The ªBº Version Is Not Recommended for New Designs
•1.1 GHz Toggle Frequency
•Supply Voltage of 4.5 to 5.5V
•Low±Power 4.0mA Typical
•Operating Temperature Range of ±40 to +85°C
•Short Setup Time (tset) 16ns Maximum @ 1.1GHz
•Modulus Control Input Level Is Compatible With Standard CMOS and TTL
•Output Load Resistor on Die
FUNCTIONAL TABLE
SW |
MC |
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Divide Ratio |
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H |
H |
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64 |
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H |
L |
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65 |
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L |
H |
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128 |
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L |
L |
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129 |
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Note: SW: H = VCC, L = Open |
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MC: H = 2.0 V to VCC, L = GND to 0.8 V |
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DESIGN GUIDE |
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Criteria |
Value |
Unit |
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Internal Gate Count* |
67 |
ea |
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Internal Gate Propagation Delay |
200 |
ps |
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Internal Gate Power Dissipation |
0.75 |
mW |
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Speed Power Product |
0.15 |
pJ |
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* Equivalent to a two±input NAND gate
MAXIMUM RATINGS
MC12022TSA
MC12022TSB
MECL PLL COMPONENTS
64/65, 128/129
DUAL MODULUS PRESCALER
P SUFFIX
8±LEAD PLASTIC PACKAGE
CASE 626±05
D SUFFIX
8±LEAD PLASTIC SOIC PACKAGE
CASE 751±05
Pinout: 8±Lead Plastic (Top View)
IN NC MC GND
8 |
7 |
6 |
5 |
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1 |
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2 |
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3 |
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4 |
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IN |
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VCC |
SW |
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OUT |
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Symbol |
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Characteristic |
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Range |
Unit |
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VCC |
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Power Supply Voltage, Pin 2 |
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±0.5 to + 7.0 |
Vdc |
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TA |
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Operating Temperature Range |
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±40 to + 85 |
°C |
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Tstg |
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Storage Temperature Range |
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±65 to + 150 |
°C |
1/97 |
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Motorola, Inc. 1997 |
1 |
REV 3 |
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MC12022TSA MC12022TSB
ELECTRICAL CHARACTERISTICS (VCC = 4.5 to 5.5V; TA = ±40°C to +85°C)
Symbol |
Characteristic |
Min |
Typ |
Max |
Unit |
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ft |
Toggle Frequency (Sine Wave Input) |
0.1 |
1.4 |
1.1 |
GHz |
ICC |
Supply Current (Pin 2) |
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4.6 |
6.5 |
mA |
VIH1 |
Modulus Control Input High (MC) |
2.0 |
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VCC |
V |
VIL1 |
Modulus Control Input Low (MC) |
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0.8 |
V |
VIH2 |
Divide Ratio Control Input High (SW) |
VCC |
VCC |
VCC |
Vdc |
VIL2 |
Divide Ratio Control Input Low (SW) |
Open |
Open |
Open |
Ð |
Vout |
Output Voltage Swing (CL = 8pF) |
1.0 |
1.4 |
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Vp±p |
tset |
Modulus Setup Time MC to Out |
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11 |
16 |
ns |
Vin |
Input Voltage Sensitivity 250±1100 MHz |
100 |
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1500 |
mVpp |
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100±250 MHz |
400 |
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1500 |
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D |
Q |
D |
Q |
D |
Q |
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Prop. Delay |
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A |
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B |
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C |
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In |
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C |
QB |
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In |
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C |
QB |
C |
QB |
M |
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In |
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Out |
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MC |
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MC Setup |
MC |
D |
Q |
D |
QB |
D |
Q |
D |
QB |
D |
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QB |
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D |
E |
F |
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G |
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H |
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MC Release |
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Q |
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C |
QB |
C |
Q |
C |
QB |
C |
Q |
C |
S |
Out |
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Modulus setup time MC to out is the MC |
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SW |
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setup or MC release plus the prop delay. |
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Figure 1. Logic Diagram (MC12022TSA)
500 m ≈ |
20 ns |
Figure 2. Modulus Setup Time
500 m ≈ |
20 ns |
( 64, 500MHz Input Frequency, VCC = 5.0V, TA = 25°C, |
( 128, 1.1GHz Input Frequency, VCC = 5.0V, TA = 25°C, |
Output Loaded) |
Output Loaded) |
Figure 3. Typical Output Waveforms
MOTOROLA |
2 |
HIPERCOMM |
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BR1334 Ð Rev 4 |
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