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ML12052 1.1 GHz Super Low Power Dual Modulus Prescaler
MECL PLL COMPONENTS /64/65, /128/129 DUAL MODULUS PRESCALER SEMICONDUCTOR TECHNICAL DATA
Legacy Device: Motorola MC12052A
The ML12052 is a super low power dual modulus prescaler used in phase-locked loop applications with low power dissipation of 2.7 mW at a minimum supply voltage of 2.7 V. The ML12052 can be used with CMOS synthesizers requiring positive edges to trigger internal counters such as Motorola's MC145xxx or Lansdale's ML145xxx series in a PLL to provide tuning signals up to 1.1 GHz in programmable frequency steps. 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. * 1.1 GHz Toggle Frequency * The ML12052 is Pin and Functionally Compatible with the Motorola or ON Semiconductor MC12022 * Low Power 1.0 mA Typical * 2.0 mA Maximum, VCC = 2.7 to 5.5 Vdc * Short Setup Time (tset) 16 ns Maximum @ 1.1 GHz * Modulus Control Input Level is Compatible with Standard CMOS and TTL * Maximum Input Voltage Should Be Limited to 6.5 Vdc * Operating Temperature Range TA = -40 to 85C
8 1
SO 8 = -5P PLASTIC PACKAGE CASE 751 (SO-8)
SO 8
MC12052AD
ML12052-5P
Note: Lansdale lead free (Pb) product, as it becomes available, will be identified by a part number prefix change from ML to MLE.
PIN CONNECTIONS
IN VCC SW OUT
1 2 3 4
8 7 6 5
IN NC MC Gnd
FUNCTIONAL TABLE
SW H H L L MC H L H L Divide Ratio 64 65 128 129
(Top View)
NOTES: 1. SW: H = VCC, L = Open. A logic L can also be applied by grounding this pin, but this is not recommended due to increased power consumption. 2. MC: H = 2.0 V to VCC, L = GND to 0.8 V.
MAXIMUM RATINGS
Characteristic Power Supply Voltage, Pin 2 Operating Temperature Range Storage Temperature Range Modulus Control Input, Pin 6 Symbol VCC TA Tstg MC Range -0.5 to 7.0 -40 to 85 -65 to 150 -0.5 to 6.5 Unit Vdc C C Vdc
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ML12052
LANSDALE Semiconductor, Inc.
ELECTRICAL CHARACTERISTICS (VCC = 2.7 to 5.5 VDC, TA = -40 to 85C, unless otherwise noted.)
Characteristic Toggle Frequency (Sine Wave Input) Supply Current (Pin 2) Modulus Control Input High (MC) Modulus Control Input Low (MC) Divide Ratio Control Input High (SW) Divide Ratio Control Input Low (SW) Output Voltage Swing (Note 2) (CL = 8.0 pF, RL = 3.3 k) Modulus Setup Time MC to Out @ 1100 MHz Input Voltage Sensitivity 250-1100 MHz 100-250 MHz Output Current (Note 1) VCC = 2.7 V, CL = 8.0 pF, RL = 3.3 k VCC = 5.0 V, CL = 8.0 pF, RL = 7.2 k Symbol ft ICC VIH1 VIL1 VIH2 VIL2 Vout tset Vin IO - - 0.5 0.5 3.0 3.0 Min 0.1 - 2.0 Gnd VCC - 0.5 V Open 0.8 - 100 400 Typ 1.4 1.0 - - VCC Open 1.1 11 - - Max 1.1 2.0 VCC + 0.5 V 0.8 VCC + 0.5 V Open - 16 1000 1000 Unit GHz mA V V VDC - VPP ns mVPP mA
NOTES: 1. Divide ratio of /64/65 @ 1.1 GHz 2. Valid over voltage range 2.7 to 5.5 V; RL = 3.3 k @ VCC = 2.7 V; RL = 7.2 k @ VCC = 5.0 V
Figure 1. Logic Diagram (ML12052)
Figure 2. Modulus Setup Time
D A C
Q
D B
Q
D C
Q QB
Prop. Delay In
QB
C
QB
CM
In In Out MC MC Setup
D D C QB C Q D QB E Q C D F QB C Q D QB G Q D H C SQ QB
MC
Out
MC Release Modulus setup time MC to out is the MC setup or MC release plus the prop delay.
SW
Figure 3. AC Test Circuit VCC = 2.7 to 5.5 V C3 Sine Wave Generator C1 50 C2 IN MC GND IN OUT CL RL
EXTERNAL COMPONENTS C1 = C2 = 1000 pF C3 = 0.1 F CL = 8.0pF (Including Scope and jig capacitance) RL = 3.3 k @ VCC = 2.7 V RL = 7.2 k @ VCC = 5.0 V
VCC
SW
MC Input
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ML12052
LANSDALE Semiconductor, Inc.
Figure 4. Typical Input Impedance versus Input Frequency
300 200 R 100 0 -100 -200 -300 OHMS -400 -500 -600 -700 -800 jX -900 -1000 -1100 -1200 100
MHz
200
300
400
500
600
700
800
900
1000
1100
1200
Frequency (MHz)
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ML12052
LANSDALE Semiconductor, Inc.
Figure 5.. Generic block diagram showing prescaler connection to PLL device
Prescaler
Fout Fin
PLL ML145146 ML145158 ML145159
ML12052
MC in MC
VCO
Loop Filter
Figure 5 shows a generic block diagram for connecting a prescaler to a PLL device that supports dual modulus control. Application note AN535 decribes using a twomodulus prescaler technique.By using prescaler higher frequencies can be achieve than by a single CMOS PLL device.
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ML12052
LANSDALE Semiconductor, Inc.
OUTLINE DIMENSIONS
SO = -5P (ML12052-5P) PLASTIC PACKAGE CASE 751-06 (SO-8) ISSUE T A
8
D
5
C
E
1 4
H
0.25
M
B
M
NOTES: 1. DIMENSIONING AND TOLERANCING PER ASME Y14.5M, 1994. 2. DIMENSIONS ARE IN MILLIMETER. 3. DIMENSION D AND E DO NOT INCLUDE MOLD PROTRUSION. 4. MAXIMUM MOLD PROTRUSION 0.15 PER SIDE. 5. DIMENSION B DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOW ABLE DAMBAR PROTRUSION SHALL BE 0.127 TOTAL IN EXCESS OF THE B DIMENSION AT MAXIMUM MATERIAL CONDITION. DIM A A1 B C D E e H h L MILLIMETERS MIN MAX 1.35 1.75 0.10 0.25 0.35 0.49 0.19 0.25 4.80 5.00 3.80 4.00 1.27 BSC 5.80 6.20 0.25 0.50 0.40 1.25 0 7
h B C e A
SEATING PLANE
X 45
L 0.10 A1 B 0.25
M
CB
S
A
S
Lansdale Semiconductor reserves the right to make changes without further notice to any products herein to improve reliability, function or design. Lansdale does not assume any liability arising out of the application or use of any product or circuit described herein; neither does it convey any license under its patent rights nor the rights of others. "Typical" parameters which may be provided in Lansdale data sheets and/or specifications can vary in different applications, and actual performance may vary over time. All operating parameters, including "Typicals" must be validated for each customer application by the customer's technical experts. Lansdale Semiconductor is a registered trademark of Lansdale Semiconductor, Inc.
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