ZL40802DCF1 [MICROSEMI]

Prescaler, 4000/14000/40000 Series, 1-Func, Bipolar, PDSO8, 0.150 INCH, LEAD FREE, MS-012AA, SOIC-8;


型号：	ZL40802DCF1
厂家：	Microsemi
描述：	Prescaler, 4000/14000/40000 Series, 1-Func, Bipolar, PDSO8, 0.150 INCH, LEAD FREE, MS-012AA, SOIC-8 光电二极管
文件：	总14页 (文件大小：831K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

ZL40800/2

6 GHz Fixed Modulus Prescalers

÷ 8 and ÷ 16

Data Sheet

May 2007

Features

•

3.45 V Single Supply Operation

Ordering Information

Low Power Dissipation: 190 mW typ

Broadband: DC to 6 GHz

SSB Phase Noise (–153 dBc/Hz @ 10 kHz)

Pout 3 dBm

ZL40800/DCA

ZL40800/DCB

ZL40802/DCA

ZL40802/DCB

ZL40802DCF1

8 pin SOIC

8 pin SOIC*

Tubes

Tape & Reel

Tubes

Tape & Reel

Bake & Drypack

Tubes,

Prescaler Modulus

ZL40802DCE1

8 pin SOIC*

Bake & Drypack

•

ZL40800 – Divide by 8

ZL40802 – Divide by 16

*Pb Free Matte Tin

-40°C to 85°C

Description

Applications

The ZL40800 and ZL40802 are Bipolar 3.45 V supply,

very low power prescalers for professional applications

with a fixed modulus of 8 or 16. The ultra low close in

(1 kHz offset) SSB phase noise performance is ideal for

narrow band communications systems or systems with

ultra low jitter budgets such as next generation fibre

optic communications. The devices are broadband from

DC to 6 GHz.

•

DC to 6 GHz PLL applications

HyperLan

LMDS

Instrumentation

Satellite Communications

Fibre Optic Communications; OC48, OC192

Ultra Low Jitter Clock Systems

See Figure 1 and Application Note for RF Prescalers for

more details.

VCC IN

VCC OUT

200 Ohm

OUTPUT

OUTPUT B

Vref

Div N

400 Ohm

INPUT

INPUT B

•

10mA

GND

Figure 1 - Block Diagram

Zarlink Semiconductor Inc.

Zarlink, ZL and the Zarlink Semiconductor logo are trademarks of Zarlink Semiconductor Inc.

ZL40800/2

Data Sheet

Vcc IN

INPUT

INPUT Bar

GND

Vcc OUT

OUTPUT

OUTPUT Bar

GND

SOIC (N)

Figure 2 - Pin Connections - Top View

Application Configuration

Figure 3 shows a recommended application configuration. This example shows the device set up for single ended

operation.

Application Diagram

C1: 1nF

C2: 10nF

Rfilter

C3: 100pF

C4: 100pF

C5: 10nF

C6: 10nF

Rload

Rsource:

Note: Dotted Components Optional

Figure 3 - Recommended Circuit Configuration

This represents the circuit used to complete characterization. The tabulated Electrical performance is guaranteed

using this application circuit.

Unpopulated evaluation boards are available, type No. ZLE40008. Fully populated evaluation boards are also

available, type Nos. ZLE40800 and ZLE40802.

Zarlink Semiconductor Inc.

ZL40800/2

Data Sheet

Circuit Options

The application circuit includes some optional components that may be required to improve tolerance of system

noise present in the application.

Dummy R source may be added to the inverting input to provide a better matched source impedance at the input.

This will improve the rejection of common mode noise present within the system.

Dummy R load may be added to the inverting output to provide better matched load at the output. This will reduce

the radiated EMI at the output and reduce the Output Noise present on the supply rail.

R1 and R2 400 Ohm Pull ups are added to increase the headroom present at the amplifier output. This enhances

the operation at maximum supply and temperature. An alternative is to provide an inductive choke in place of R1

and R2.

These components provide a parallel DC Path to Vcc increasing the bandwidth of the output stage and providing a

virtually flat output power across frequency. See Fig 12 and 13.

Rfilter can be inserted between the Vcc in and the Vcc_out to provide additional filtering to the input Vcc. The input

Vcc powers the input bias reference only and can be a sensitive point to system noise. The nominal input current at

Vcc_IN s 0.35 mA. An alternative would be to use an inductive choke.

C1 is additional Supply Filtering and should be added with Rfilter. The IC includes 10 pF of on Chip Supply Filtering.

Input and Output Circuit

Figure 4 shows the equivalent input and output circuit.

Vcc_Out

•

Vcc_In

I/O Circuits

0.5pF

Vref

0.5pF

Output

1.0nH

•

Input

1.0nH

0.2pF

Output Bar

•

0.8pF

•

1.0nH

Gnd

Input bar

10mA

•

Gnd

Figure 4 - Input and Output Equivalent Circuit

Zarlink Semiconductor Inc.

ZL40800/2

Data Sheet

Increase Output Power Output Match and Narrow Band Operating Range

The device has been characterised with a mismatch at the output. This is a broadband configuration. 3 dB more

output power is available if the application matches the load to the output impedance.

ZL40802 Phase Noise vs Offset Freq

Pin = -6dBm, Vcc = 3.6V, Temp = 25C @ 1,3 & 5GHz

-130

-135

-140

5GHz

3GHz

1GHz

-145

-150

-155

-160

100

1000

10000

100000

Offset Frequency in Hz

Figure 5 - ZL40802 Typical Phase Noise

Absolute Maximum Ratings

Parameter

Supply voltage

Symbol

Min.

Max.

Units

Vcc

-0.5

dBm

RFin

All I/O ports

ESD protection

-0.5

+0.5

Mil-std 883B / 3015 cat1

Storage temperature

-55

+150

°C

Operating Ranage

Parameter

Symbol

Min.

Max.

Units

Supply voltage

Vcc

3.3

0.1

-40

150

3.6

RF in Frequency Range

GHz

°C

Operating Junction Temperature

Junc’n to Amb’t resistance

125

Rth (j-a)

Rth (j-c)

°C/W

4 layer FR4 Board

Junc’n to Amb’t resistance

°C/W

4 layer FR4 Board

Zarlink Semiconductor Inc.

ZL40800/2

Data Sheet

AC/DC Electrical Characteristics

Electrical Characteristics^†

Characteristic

Min.

Typ.

Max.

Units

Conditions

Icc_in (Supply current)

Icc_out (Supply current)

Input frequency

0.35

ZL40800 Div8 & ZL40802 Div16

ZL40800 Div8

ZL40802 Div16

2,3

6,7

GHz

dBm

RMS sinewave,

Input sensitivity

-20

-10

fin = 1 GHz to 6 GHz, Note 1

Input overload

Phase Noise

-150

dBC/Hz @ 1 kHz Offset Fin = 3 GHz

Output voltage

Vp-p

Differential Into 50 ohm pull up

resistors

Output power

6,7

-7

-2

dBm

fin = 1 GHz to 6 GHz, Pin = -10 dBm

Note 2

Output t-rise

Output t-fall

6,7

2,6

6,7

2,3

110

250

0.1

fin = 1 GHz to 6 GHz, Pin = -10 dBm

50% IN to 50% OUT

T – prop delay

Jitter

Output Duty Cycle

Input Edge Speed

fin = 1 GHz to 6 GHz, In = -10 dBm

For < 1 GHz input operation

500

V/us

† These characteristics are guaranteed by design and characterization over the following range of operating conditions unless otherwise stated:

Tamb = -40C to + 85C, Vcc = 3.3 V to 3.6 V.

Note 1: Pin = power measured into 50 ohm Load from 50 Ohm Source.

Note 2: Pout Single Ended AC coupled Single 50 Ohm Termination

Zarlink Semiconductor Inc.

ZL40800/2

Data Sheet

Typical Input Sensitivity (Sinewave Drive)

Edge

Speed

Guaranteed Operating Range

-40C to 85C

-5

>500V/us

-10

-15

-20

-25

-30

-35

Input Frequency (GHz)

Figure 6 - Typical Input Sensitivity (sine wave drive)

Single Ended AC Coupled Single Termination

( + 400 Ohm or Choke Pull Up )

Vcc out

Transmission Line

Optional

Balance

Gnd

Pre-scaler Output

Figure 7 - Single Ended AC Coupled Single Termination

(+400 Ohm or Choke Pull Up)

Zarlink Semiconductor Inc.

ZL40800/2

Data Sheet

ZL40800 Phase Noise vs Offset

Pin = 2dBm, Vcc = 3.6V, Temp = 25C

-130

-135

-140

-145

-150

-155

-160

5GHz

3GHz

1GHz

100

1000

10000

100000

Offset frequency in Hz

Figure 8 - ZL40800 Typical Phase Noise

ZL40800: Phase Noise vs Input Frequency

@ 2.5dBm Pin, 3.6V Supply, 25C

-120

-125

-130

-135

-140

-145

-150

-155

-160

100 Hz

1 KHz

10 KHz

100 KHz

Input Frequency (GHz)

Figure 9 - ZL40800 Phase Noise vs Input Frequency

Zarlink Semiconductor Inc.

ZL40800/2

Data Sheet

ZL40800: Phase Noise v Pin,

3.6V Supply, Fin = 3GHz, T = 25C

-120

-130

-140

-150

-160

100 Hz

1 KHz

10 KHz

100 KHz

-10

-5

Pin (dBm)

Figure 10 - ZL40800 Phase Noise vs Input Power

ZL40800: Phase Noise v Vcc

Fin = 3GHz, Pin = -6dBm, T =25C

-120

-130

-140

-150

-160

100 Hz

1 KHz

10 KHz

100 KHz

3.2

3.3

3.4

3.5

3.6

3.7

Supply Voltage (V)

Figure 11 - ZL40800 Phase Noise vs Vcc

Zarlink Semiconductor Inc.

ZL40800/2

Data Sheet

Single Ended or Differential Load

Figure 12 and Figure illustrate the output waveform when measured differential and single ended with a 6 GHz

waveform at the input at a level of +2 dBm. The single ended output contains some input frequency breakthrough

which contributes to the distortion present. This is a common mode signal which is rejected if the output is taken

differentially.

Differential operation also provides an additional 3 dB. Differential Operation reduces the radiated EMI in the

system and reduces the susceptibility to common mode system noise.

ZL40800_Dev1 (/8) with 400R pull-ups

Frequency_sweep, Vcc = 3.6v

Device 1,Temperature = 25°C

Device 1,Temperature = 85°C

-1

-2

-3

-4

-5

-6

1E+09 2E+09 3E+09 4E+09 5E+09 6E+09 7E+09 8E+09

i/p frequency (Hz)

Figure 12 - ZL40800 Pout / Input Frequency

ZL40802_dev1_Frequency_sweep, Vcc = 3.3v

Device 1,Temperature = -40°C

Device 1,Temperature = 85°C

Device 1,Temperature = 25°C

-1

-2

-3

-4

-5

-6

-7

-8

1000000000

10000000000

i/p frequency (Hz)

Figure 13 - ZL40800Pout v Input Frequency

(Vcc=3.3V, T= -40C,25C, 85C)

Zarlink Semiconductor Inc.

ZL40800/2

Data Sheet

6GHz Prescaler Input Impedance, VCC=3.3V

REAL

-10

-20

-30

-40

-50

IMAGE

Frequency (GHz)

Figure 14 - Input Impedance of 6 GHz Prescalers (Typical)

Figure 15 - ZL40800 Single Ended Out @ 5 Ghz +2 dBm

Zarlink Semiconductor Inc.

ZL40800/2

Data Sheet

Figure 16 - ZL40800 Differential Out @ 5 Ghz +2 dBm

Zarlink Semiconductor Inc.

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