U2783B-AFS datasheet, PDF - EEWORLD Datasheet

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U2783B-AFS: DescriptionPLL Frequency Synthesizer, BIPolar, PDSO20, SSO-20; CategoryAnalog mixed-signal IC The signal circuit; File Size70KB，11 Pages; ManufacturerAtmel (Microchip)

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U2783B-AFS Overview

PLL Frequency Synthesizer, BIPolar, PDSO20, SSO-20

U2783B-AFS Parametric

Parameter Name	Attribute value
Is it lead-free?	Contains lead
Is it Rohs certified?	incompatible
Parts packaging code	SSOP
package instruction	SSOP, SSOP20,.25
Contacts	20
Reach Compliance Code	compliant
Other features	PRESCALER RATIOS OF 64/65 FOR PLL1 AND 32/33 FOR PLL2
Analog Integrated Circuits - Other Types	PLL FREQUENCY SYNTHESIZER
JESD-30 code	R-PDSO-G20
JESD-609 code	e0
length	6.625 mm
Number of functions	1
Number of terminals	20
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Package body material	PLASTIC/EPOXY
encapsulated code	SSOP
Encapsulate equivalent code	SSOP20,.25
Package shape	RECTANGULAR
Package form	SMALL OUTLINE, SHRINK PITCH
Peak Reflow Temperature (Celsius)	NOT SPECIFIED
power supply	3/5,5 V
Certification status	Not Qualified
Maximum supply voltage (Vsup)	5.5 V
Minimum supply voltage (Vsup)	2.7 V
Nominal supply voltage (Vsup)	3 V
surface mount	YES
technology	BIPOLAR
Temperature level	INDUSTRIAL
Terminal surface	Tin/Lead (Sn/Pb)
Terminal form	GULL WING
Terminal pitch	0.65 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	NOT SPECIFIED
width	4.4 mm
Base Number Matches	1

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U2783B

1250-MHz / 400-MHz Twin PLL

Description

The IC U2783B is a low-power twin PLL manufactured

with Atmel Wireless & Microcontrollers’ advanced UHF

process. The maximum operating frequency is 1250 MHz

and 400 MHz respectively. It features a wide supply-volt-

age range from 2.7 V to 5.5 V.

Prescaler and power-down function for both PLLs is inte-

grated. Applications are CT1, CT2, IS54 etc.

Electrostatic sensitive device.

Observe precautions for handling.

Features

Very low current consumption (typical 3 V/10 mA)

Supply-voltage range 2.7 V to 5.5 V

Maximum input frequency PLL1: 1250 MHz,

PLL2: 400 MHz

2 pins for separate power-down functions

Output for PLL lock status

Prescaler 64/65 for PLL1 and 32/33 for PLL2

SSO20 package

ESD protected according to MIL-STD 833

method 3015 cl.2

Benefits

Low current consumption leads to extended talk time

Twin PLL saves costs and space

One foot print for all Atmel Wireless &

Microcontrollers twin PLLs saves design-in time

Block Diagram

analog

digital

DGND

Power

down Test

Ports

5I/Port 0

HPD1/Port 1

HPD2/Port 4

Port3

AGND 15

OSCi

OSCo

Oscillator

Control functions

16-bit latch

Lock

select

Lock Port2

On / off

divide by 2

12-bit latch 1

12-bit reference divider 1

17-bit latch 1

Phase

detector 1

Charge

pump 1

CP1

Scp

RFi1

64/65 Prescaler 1

17-bit main divider 1

Clock

3-bit

Load control

17-bit

Shift register

Pump

bias

Iset

Data 12

Enable

12-bit latch 2

12-bit reference divider 2

15-bit latch 2

RFi2

32/33 Prescaler 2

15-bit main divider 2

94 8918

Phase

detector 2

Charge

pump 2

18 CP2

Figure 1. Block diagram

Rev. A5, 07-Sep-00

1 (11)

U2783B-AFS Related Products

	U2783B-AFS	U2783B-AFSG3
Description	PLL Frequency Synthesizer, BIPolar, PDSO20, SSO-20	PLL Frequency Synthesizer, BIPolar, PDSO20, SSO-20
Is it lead-free?	Contains lead	Contains lead
Is it Rohs certified?	incompatible	incompatible
Parts packaging code	SSOP	SSOP
package instruction	SSOP, SSOP20,.25	SSOP, SSOP20,.25
Contacts	20	20
Reach Compliance Code	compliant	compliant
Other features	PRESCALER RATIOS OF 64/65 FOR PLL1 AND 32/33 FOR PLL2	PRESCALER RATIOS OF 64/65 FOR PLL1 AND 32/33 FOR PLL2
Analog Integrated Circuits - Other Types	PLL FREQUENCY SYNTHESIZER	PLL FREQUENCY SYNTHESIZER
JESD-30 code	R-PDSO-G20	R-PDSO-G20
JESD-609 code	e0	e0
length	6.625 mm	6.625 mm
Number of functions	1	1
Number of terminals	20	20
Maximum operating temperature	85 °C	85 °C
Minimum operating temperature	-40 °C	-40 °C
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	SSOP	SSOP
Encapsulate equivalent code	SSOP20,.25	SSOP20,.25
Package shape	RECTANGULAR	RECTANGULAR
Package form	SMALL OUTLINE, SHRINK PITCH	SMALL OUTLINE, SHRINK PITCH
Peak Reflow Temperature (Celsius)	NOT SPECIFIED	NOT SPECIFIED
power supply	3/5,5 V	3/5,5 V
Certification status	Not Qualified	Not Qualified
Maximum supply voltage (Vsup)	5.5 V	5.5 V
Minimum supply voltage (Vsup)	2.7 V	2.7 V
Nominal supply voltage (Vsup)	3 V	3 V
surface mount	YES	YES
technology	BIPOLAR	BIPOLAR
Temperature level	INDUSTRIAL	INDUSTRIAL
Terminal surface	Tin/Lead (Sn/Pb)	Tin/Lead (Sn/Pb)
Terminal form	GULL WING	GULL WING
Terminal pitch	0.65 mm	0.65 mm
Terminal location	DUAL	DUAL
Maximum time at peak reflow temperature	NOT SPECIFIED	NOT SPECIFIED
width	4.4 mm	4.4 mm
Base Number Matches	1	1

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