 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| Preliminary Information SATURN SATURN CDMA/AMPS dual Band IF Receiver for Digital Phones Preliminary Information DS4721 Issue 4.2 April 1999 Features q Selectable IF input buffers with characteristic impedance suitable for interface to IF CDMA and FM SAW filter outputs AGC amplifiers with 90dB of variable gain, fully compensated for temperature variation IQ demodulator with accurately defined output DC level and low DC offsets LO operating at twice frequency with high accuracy quadrature generation Sophisticated power management control operation Overload indicator Odering Information SATURN/KG/QP1S SATURN/KG/QP1T q q Description The SATURN circuit is designed for use in dual band dual mode mobile phones (CDMA/AMPS). The circuit is designed to be compataible with digital baseband and mixed signal circuit chips from Mitel (Planet Chip-set) and Qualcomm (MSM2 and BBA). A wideband AGC amplifier allows the input of CDMA or AMPS signal paths with a range power management control options. q q q IF VCC IF VEE IF OUT FM IFIN I OUT CDMA IFIN Q OU T AGC Gain Control Temperature Comp. DLL BAND 1900 Overload Indicator STARTUP ENABLE MODE CDM PRESCALER Mode Control VHF VCC VHF VEE Figure 1 Block diagram OVERLOAD DET VHF BUF VHF RES 1 SATURN Preliminary Information IF VCC IF OUTB IF OUT IF VEE GND CDMA IFIN CDMA IFINB FM IFIN FM IFINB AGC AGCB MODE CDMA ENABLE GND VHF VCC I OUTB I OUT VHF VEE OVERLOAD DET VHF RES VHF RESB BAND 1900 VHF BUF VHF BUFB GND Q OUT Q OUTB STARTUP QSOP28 Figure 2 Pin Connections Pin Description Pin No 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 Pin Name IF VCC IF OUTB IF OUT IF VEE GND CDMA IFIN CDMA IFINB FM IFIN FM IFINB AGC AGCB MODE CDMA ENABLE GND STARTUP QOUTB OUT GND VHF BUFB VHF BUF BAND 1900 VHF RESB VHF RES OVERLOAD DET VHF VEE I OUT I OUTB VHF VCC Description Supply for IF inputs and AGC blocks Post AGC IF output Post AGC IF output Ground for IF inputs and AGC blocks Substrate ground Post SAW IF input (CDMA) Post SAW IN input (CDMA) Post SAW IF input (FM) Post SAW IF inputs (FM) (AC ground) AGC Control for IF section AGC control for IF sections (AC ground) CDMA/FM mode select Power up AGC sections of device Substrate Ground Power up Oscillator, DLL and Mixer sections of the device Q channel baseband output Q Channel baseband output Ground VHF oscillator buffered output for synthesiser VHF oscillator buffered output for synthesiser VHF oscillator tuning band select input VHF VCO resonator VHF VCO resonator Overload detector output Ground for VHF VCO and DLL blocks I channel baseband output I channel baseband output Supply for VHF and DLL blocks 2 Preliminary Information Electrical Characteristics (Mode Control) Description Standby Mode Start up Mode SATURN ENAVLE STARTUP MODE CDMA BAND 1900 0 0 0 0 1 1 X X X X 1 0 Conditions All circuits powered down except logic inputs For high band IF (210.38MHz) For low band IF (85.38MHz) Turns on VCO circuits, DLL quadrature generation, prescaler and IQ demodulator. All other circuits remain powered down CDMA mode 1 1 1 1 1 1 1 0 For high band IF (210.38MHz) For low band IF (85.38MHz) All circuits operational except for IF output buffer, CDMA input stage selected. All circuits operational except for IF output buffer, FM input stage selected. Note 4 Demodulator and LO generation circuitry powered down. IF output buffer enabled Demodulator and LO generation circuitry powered down. IF output buffer enabled. FM Mode 1 1 0 0 Alternative FM mode CDMA IF AGC only mode 1 1 1 0 0 1 1 X FM IF AGC 1 0 0 X X = Don't Care Notes 1. STARTUP mode is provided to allow VCO/DLL/prescalers to stabilise before signal path is activated. This is a power-saving feature since the signal path is redundant during this period. If this feature is not required, the ENABLE and STARTUP control pins can be shorted together so that all circuitry is activated at the same time. In high band mode (Band 1900 = 1) the VCO operates at twice the IF frequency. For example if IF = 210.38MHz then the oscillator operates at 420.76MHz. A delay locked loop (DLL) circuit then generates the quadrature LO signals. The prescaler output, VHFBUF, is VCO frequency divided by 8 (52.494MHz). In low band mode (Band 1900 = 0) the VCO operates at 4 times the IF frequency. for example if IF = 85.38MHz the oscillator operates at 341.52MHz. This is then divided and uses DLL circuit to provide the quadrature LO signals. The prescaler output, VHFBUF, is VCO frequency divided by 8 (42.69MHz). This mode can be used for FM. The VCO operates at twice the LO frequency. This mode is not normally used as a large tuning range is required on the VCO. Prescaler output is LO frequency divided by four. 2. 3. 4 3 SATURN Absolute Limits Description Supply Voltage Operation temperature, Tamb Storage temperature, Tstg Junction temperature, Tj Power dissipation Maximum Pin Voltage Minimum Pin Voltage ESD voltage -0.6 1.75 -30 -40 -30 Preliminary Information Min Typ Max 4.0 +85 +125 +125 350 Vcc+0.6 Units Volts C C C mW Volts Volts kV Comments Ambient temperature All pins except Vcc and GND All pins except Vcc and GND Human Body Model Electrical Characteristics (DC specifications) Tamb= 30C to +70C, Vcc = +2.7 to +3.6. These characteristics are guaranteed by either production test or design. They apply within the specified ambient temperature and supply voltage unless otherwise stated. Characteristic Min Value Typ Max Units Conditions General Supply Voltage 2.7 3.0 3.6 Operating temperature -30 27 85 Current Consumption Standby Mode 0.03 0.1 Startup Mode 8 13 CDMA Mode 14 23 FM Mode 14 23 CDMA AGC only Mode 8 13 FM AGC only Mode 11 18 Mode Control Logic CMOS input logiv high, VIH Vcc-0.5 Vcc+0.1 CMOS input high current, IIH -10 10 CMOS input low current, IIL -10 10 Switching time between any two Modes 3 AGC Control 0.1 2.6 AGC Input impedance 100 130 160 DC Common Mode voltages I OUT, I OUTB (CDMA Mode) Vcc-0.8 Vcc-0.6 Vcc-0.4 I OUTB, QOUTB I OUT< Q OUT (FM Mode) Vcc-0.8 Vcc-0.6 Vcc-0.4 I OUTB, Q OUTB V C mA mA mA mA mA mA V A A ms V k V V All Vcc Pins Ambient See note 1 All logic inputs All logic inputs All logic inputs Note 1. Specifications are guaranteed over -30 to + 70C, however operation is guaranteed over the extended range of -30 to +85C with minimal variation in specified parameters. 4 Preliminary Information Electrical Characteristics (AC specifications) Continued SATURN Tamb= 30C to +70C, Vcc = +2.7 to +3.6. These characteristics are guaranteed by either production test or design. They apply within the specified ambient temperature and supply voltage unless otherwise stated. Frequency = 210.38MHz Characteristic Min CDMA AGC Max Voltage Gain to demodulator output Min Voltage Gain to demodulator output Max Voltage Gain to IF buffer output Min voltage Gain to IF buffer output AGC control Max AGC control Min Gain slope Gain slope linearity Gain temperature stability Channel gain variation @ 210.38MHz NFGainmax Input V1dBGainmin IIP3Gainmin Input impedance IF Frequency CDMA to Amps isolation 48 Value Typ 50 -55 42 2.6 0.1 40 6 -2 -0.1 5.5 110 104 114 120 500 250 90 2 0.1 6.5 -43 -51 -47 Max Units Conditions dB dB dB dB V V dB/V dB/V dB dB dB dBV dBV dBV MHz dB To demodulator outputs To demodulator IF AGC only mode IF AGC only mode Gain = Gain max Gain = Gain min Over gain control range Within channel bandwidth Rs (500) Minimum gain Power (500) Minimum gain With addition of external resistor across IF inputs -49 50 30 5 SATURN Electrical Characteristics (AC specifications) Continued Preliminary Information Tamb= 30C to +70C, Vcc = +2.7 to +3.6. These characteristics are guaranteed by either production test or design. They apply within the specified ambient temperature and supply voltage unless otherwise stated. Frequency = 85.38MHz Characteristic Min FM AGC Max Voltage Gain to demodulator output Min Voltage Gain to demodulator output Max Voltage Gain to OF buffer output Min voltage Gain to IF buffer output AGC control Max AGC control Min Gain slope Gain slope linearity Gain temperature stability NFGainmax Input V1dBGainmin IIP3Gainmin Input Impedance IF Frequency VHF Local Oscillator Quaderature generation LO input Frequency VCO Phase noise VCO Noise floor VCO buffer output VCO buffer output impedance 52 Value Typ 54 -49 54 2.6 0.1 40 6 -2 98 103 105 113 850 250 80 2 6 59 -48 -47 Max Units Conditions dB dB dB dB V V dB/V dB/V dB dB dBV dBV MHz To demodulator outputs To demodulator IF AGC only mode IF AGC only mode Gain = Gain max Gain = Gain min Over gain control range For any gain setting 850 source Minimum gain Minimum gain With addition of external resistor across IF inputs -42 50 100 -100 500 -98 -130 350 100 MHz dBc/Hz @30kHz, Hiband mode Minimum tank Q=15 Note 1 dBc/Hz @>3MHz, Note 1 mV pk-pk single ended Differential Note 1: Phase noise is specified at the LO input to the mixers. 6 Preliminary Information Electrical Characteristics (AC specifications) Continued SATURN Tamb= 30C to +70C, Vcc = +2.7 to +3.6. These characteristics are guaranteed by either production test or design. They apply within the specified ambient temperature and supply voltage unless otherwise stated. Characteristic Min Demodulator Output I/Q Gain matching I/Q Phase matching Output impedance Baseband Bandwidth Output IP3 Baseband differential DC offset Overload Detect CDMA Mode FM Mode Value Typ Max Units Conditions I OUT, I OUTB, Q OUT, Q OUTB 3 0.1 0.5 4 50 119 0.25 2 5 dB deg k MHz dBV mV Differential Defined by on-chip first order low-pass filter 117 3.5 104 106 Referred to baseband outputs dBV dBV 7 http://www.mitelsemi.com World Headquarters - Canada Tel: +1 (613) 592 2122 Fax: +1 (613) 592 6909 North America Tel: +1 (770) 486 0194 Fax: +1 (770) 631 8213 Asia/Pacific Tel: +65 333 6193 Fax: +65 333 6192 Europe, Middle East, and Africa (EMEA) Tel: +44 (0) 1793 518528 Fax: +44 (0) 1793 518581 Information relating to products and services furnished herein by Mitel Corporation or its subsidiaries (collectively "Mitel") is believed to be reliable. However, Mitel 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 Mitel or licensed from third parties by Mitel, whatsoever. Purchasers of products are also hereby notified that the use of product in certain ways or in combination with Mitel, or non-Mitel furnished goods or services may infringe patents or other intellectual property rights owned by Mitel. This publication is issued to provide information only and (unless agreed by Mitel 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 Mitel 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 Mitel's conditions of sale which are available on request. M Mitel (design) and ST-BUS are registered trademarks of MITEL Corporation Mitel Semiconductor is an ISO 9001 Registered Company Copyright 1999 MITEL Corporation All Rights Reserved Printed in CANADA TECHNICAL DOCUMENTATION - NOT FOR RESALE |
Price & Availability of SATURN
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |