ZL40803 6 GHz Fixed Modulus ÷ 2 Data Sheet Features • • • • • • July 2003 3.45V Single Supply Operation Low Power Dissipation: 250mW typ Broadband: DC to 6GHz SSB Phase Noise: –147dBc/Hz @ 10KHz Pout 0dBm Surface Mount Plastic Package: 8 SOIC Ordering Information ZL40803/DCA (tubes) 8 pin SOIC ZL40803/DCB (tape and reel) 8 pin SOIC -40°C to +85°C Prescaler Modulus Description ZL40803 – Divide by 2 The ZL40803 are Bipolar 3.45V supply, very low power prescalers for professional applications with a fixed modulus of 2. The ultra low close in (1KHz 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 6GHz. Applications • • • • • • • 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 1 8 50 Ohm OUTPUT 7 6 OUTPUT B Vref Div N 400 Ohm INPUT 2 INPUT B 3 20mA GND GND 4 5 Figure 1 - Functional Block Diagram 1 Zarlink Semiconductor Inc. Zarlink, ZL and the Zarlink Semiconductor logo are trademarks of Zarlink Semiconductor Inc. Copyright 2003, Zarlink Semiconductor Inc. All Rights Reserved. ZL40803 Data Sheet Vcc IN 1 8 Vcc OUT INPUT 2 7 OUTPUT INPUT Bar 3 6 OUTPUT Bar GND 4 5 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 Rfilter C3: 100pF Rsource: C4: 100pF 1 2 3 4 C2: 10nF Vcc 8 7 6 5 C5: 10nF C6: 10nF Rload Note: Dotted Components Optional Figure 3 - Recommended circuit configuration This represents the circuit used to complete characterisation. The tabulated Electrical performance is guaranteed using this application circuit. Unpopulated evaluation boards are available, type No. ZLE40008. A fully populated evaluation board is also available, type No. ZLE40803. 2 Zarlink Semiconductor Inc. ZL40803 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. 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 0.35mA. An alternative would be to use an inductive choke. C1 is additional Supply Filtering and should be added with Rfilter. The IC includes 10pF of on Chip Supply Filtering. Input & Output Circuit Figure 4 shows the equivalent input and output circuit Vcc_Out I/O Circuits Vcc_In Vref • 1.0nH 1.0nH Gnd • • • • • 0.5pF • 0.8pF • Output Output Bar • 20mA 10mA • 1.0nH 1.0nH • • 0.2pF • Input bar 400 Ohm Input 400 Ohm 0.5pF • 50 Ohm • 50 Ohm • • • Figure 4 - Input and Output Equivalent Circuit 3 Zarlink Semiconductor Inc. Gnd ZL40803 Data Sheet Phase Noise in dBC/Hz ZL40803 Phase Noise / Offset Frequency T = 25C, Vcc =3.6V, Pin = -6dBm -125 -130 -135 5GHz 3GHz 1GHz -140 -145 -150 -155 100 1000 10000 Frequency in Hz Figure 5 - ZL40803 Typical Phase Noise Absolute Maximum Ratings Characteristic Min Max Units - 0.5 6 V 12 dBm -0.5V Vcc+0.5 V Storage Temperature -55 150 °C ESD protection 2KV Supply Voltage (Vcc) RFin All I/O ports Comments Mil-std 883B / 3015 cat1 Operating Range Characteristic Min Typ Max Units Supply Voltage (Vcc) 3.3 3.6 V RFin Frequency Range 0.1 6 GHz Operating Junction Temperature -40 +125 °C Comments Junc’n to Amb’t resistance Theta Ja 150 °C/W 4 layer FR4 Board Junc’n to Case resistance Theta Jc 60 °C/W 4 layer FR4 Board 4 Zarlink Semiconductor Inc. ZL40803 Data Sheet AC/DC Electrical Characteristics Electrical Characteristics † Characteristic Pin Min. Icc_in (Supply current) 1 Icc_out (Supply current) 8 44 Input frequency 2,3 1 Input sensitivity 2,3 Input overload 2,3 Phase Noise Typ. Max. Units 0.35 Conditions mA 72 110 mA 6 GHz RMS sinewave, -10 dBm fin = 1GHz to 6GHz, Note1 10 dBm fin = 1GHz to 6GHz, Note1 6,7 -150 dBC/Hz Output voltage 6,7 1 Vp-p Differential Into 50 ohm pull up resistors Output power 6,7 dBm fin = 1GHz to 6GHz, Pin = -10dBm, Note 2 Output t-rise 6,7 110 ps fin = 1GHz to 6GHz, Pin = -10dBm Output t-fall 6,7 110 ps fin = 1GHz to 6GHz, Pin = -10dBm T – prop delay 2,6 250 ps 50% IN to 50% OUT Jitter 6,7 0.1 ps Output Duty Cycle 6,7 45 Input. Edge Speed 2,3 500 -20 4 -7 -2 2 50 55 % V/us @ 10KHz Offset Fin = 3GHz fin = 1GHz to 6GHz, In = -10dBm For < 1GHz input operation † These characteristics are guaranteed by design and characterisation over the following range of operating conditions unless otherwise stated: Tamb = -40C to + 85C, Vcc = 3.3V to 3.6V. Note 1: Pin = power measured into 50 ohm Load from 50 ohm Source. Note 2: Pout Single Ended AC coupled Single 50 Ohm Termination. For details of the test set-up, refer to the Application Note for RF Prescalers. 5 Zarlink Semiconductor Inc. ZL40803 Data Sheet T yp ic al In p u t S e n s itiv ity (S in e wa v e D riv e ) 15 5 0 Edge Speed >5 00 V /us -5 G u aran te ed O p eratin g R an g e -40C to 85 C -1 0 -1 5 -2 0 -2 5 -3 0 -3 5 1 2 3 4 5 6 7 8 In p u t F re q u e n c y (GHz ) Figure 6 - Typical Input Sensitivity (sine wave drive) Vcc out 50 Ohm 50 Ohm Transmission Line 50 Ohm 0 50 Ohm Vin into 50 Ohm (dBm) 10 Gnd Optional Balance Pre-scaler Output Figure 7 - Single Ended AC Coupled Single Termination 6 Zarlink Semiconductor Inc. 9 ZL40803 Data Sheet Phase Noise in dBC/Hz ZL40803 Phase Noise / Fin T =25C, Vcc = 3.6V, Pin = -6dBm -125 -130 100 1000 10000 100000 -135 -140 -145 -150 0 1 2 3 4 5 6 Fin in GHz Figure 8 - ZL40803 Phase Noise vs Input Frequency ZL40803 Frequency_sweep, Vcc = 3.3v Device 2,Temperature = -40°C Device 2,Temperature = 25°C Device 2,Temperature = 85°C 2 1 o/p level (dBm) 0 -1 -2 -3 -4 -5 -6 -7 -8 1.00E+09 1.00E+10 i/p frequency (Hz) Figure 9 - ZL40803 Pout vs Input Frequency (Vcc = 3.3V, T=25C, T=85C) 7 Zarlink Semiconductor Inc. ZL40803 Data Sheet Frequency_sweep, Vcc = 3.6v Device 2,Temperature = -40°C Device 2,Temperature = 25°C Device 2,Temperature = 85°C 4 3 2 o/p level (dBm) 1 0 -1 -2 -3 -4 -5 -6 -7 -8 1.00E+09 1.00E+10 i/p frequency (Hz) Figure 10 - ZL40803 Pout vs Input Frequency (Vcc = 3.6V, T=25C, T=85C) 8 Zarlink Semiconductor Inc. ZL40803 Data Sheet Single Ended or Differential Load Figures 11 and 12 illustrate the output waveform when measured differential and single ended with a 5GHz waveform at the input at a level of +2dBm. The single ended output contains some input frequency break through 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 3dB. Differential Operation reduces the radiated EMI in the system and reduces the susceptibility to common mode system noise. Figure 11 - ZL40803 Single Ended Out @ 5GHz +2dBm 9 Zarlink Semiconductor Inc. ZL40803 Figure 12 - ZL40803 Differential Out @ 5GHz +2dBm 10 Zarlink Semiconductor Inc. Data Sheet For more information about all Zarlink products visit our Web Site at www.zarlink.com Information relating to products and services furnished herein by Zarlink Semiconductor Inc. or its subsidiaries (collectively “Zarlink”) is believed to be reliable. However, Zarlink assumes no liability for errors that may appear in this publication, or for liability otherwise arising from the application or use of any such information, product or service or for any infringement of patents or other intellectual property rights owned by third parties which may result from such application or use. Neither the supply of such information or purchase of product or service conveys any license, either express or implied, under patents or other intellectual property rights owned by Zarlink or licensed from third parties by Zarlink, whatsoever. Purchasers of products are also hereby notified that the use of product in certain ways or in combination with Zarlink, or non-Zarlink furnished goods or services may infringe patents or other intellectual property rights owned by Zarlink. This publication is issued to provide information only and (unless agreed by Zarlink in writing) may not be used, applied or reproduced for any purpose nor form part of any order or contract nor to be regarded as a representation relating to the products or services concerned. The products, their specifications, services and other information appearing in this publication are subject to change by Zarlink without notice. No warranty or guarantee express or implied is made regarding the capability, performance or suitability of any product or service. Information concerning possible methods of use is provided as a guide only and does not constitute any guarantee that such methods of use will be satisfactory in a specific piece of equipment. It is the user’s responsibility to fully determine the performance and suitability of any equipment using such information and to ensure that any publication or data used is up to date and has not been superseded. Manufacturing does not necessarily include testing of all functions or parameters. These products are not suitable for use in any medical products whose failure to perform may result in significant injury or death to the user. All products and materials are sold and services provided subject to Zarlink’s conditions of sale which are available on request. Purchase of Zarlink’s I2C components conveys a licence under the Philips I2C Patent rights to use these components in and I2C System, provided that the system conforms to the I2C Standard Specification as defined by Philips. Zarlink, ZL and the Zarlink Semiconductor logo are trademarks of Zarlink Semiconductor Inc. Copyright Zarlink Semiconductor Inc. All Rights Reserved. TECHNICAL DOCUMENTATION - NOT FOR RESALE