ML12034D [LANSDALE]
2.0 GHz Dual Modulus Prescaler; 2.0 GHz的双模预分频器
| 型号： | ML12034D |
| 厂家： | 
LANSDALE SEMICONDUCTOR INC. |
| 描述： | 2.0 GHz Dual Modulus Prescaler |
| 文件： | 总5页 (文件大小：1427K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ML12034
2.0 GHz Dual Modulus
Prescaler
MECL PLL COMPONENTS ÷32/33, ÷64/65 DUAL MODULUS PRESCALER
SEMICONDUCTOR TECHNICAL DATA
Legacy Device: Motorola MC12034A
The ML12034 can be used with CMOS synthesizers requiring
positive edges to trigger internal counters such as Motorola’s
MC145xxx series or Lansdale’s ML145xxx series in a PLL to pro-
vide tuning signals up to 2.0 GHz in programmable frequency steps.
A Divide Ratio Control (SW) permits selection of a 32/33 or
64/65 divide ratio as desired.
The Modulus Control (MC) selects the proper divide number
after SW has been biased to select the desired divide ratio.
• 2.0 GHz Toggle Frequency
• Supply Voltage 4.5 to 5.5 V
• ML12034 for Positive Edge Triggered Synthesizers
• 12mA Maximum, –40 to 85°C, V
CC
= 5.5 Vdc
• Modulus Control Input is Compatible with
Standard CMOS and TTL
Note: Lansdale lead free (Pb) product, as it
becomes available, will be identified by a part
number prefix change from ML to MLE.
• Low–Supply Current 8.5 mA Typical
• Operating Temperature Range T = –40 to 85°C
A
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Figure 7. Generic block diagram showing prescaler connection to
PLL device
Prescaler
PLL
Fout
Fin
ML145146
ML145158
ML145159
ML12034
MC in
MC
VCO
Loop Filter
Figure 7 shows a generic block diagram of connecting a prescaler to a PLL device
that supports dual modulus control. Application note AN535 decribes using a two-
modulus prescaler technique.By using prescaler higher frequencies can be achieve
than by a single CMOS PLL device.
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LANSDALE Semiconductor, Inc.
(ML12034-5P)
θ
θ
P DIP 8 = PP
PLASTIC PACKAGE
(ML12034PP)
CASE 626-04
Lansdale Semiconductor reserves the right to make changes without further notice to any products herein to improve reliabili-
ty, 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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