PRELIMINARY DATA SHEET BIPOLAR ANALOG INTEGRATED CIRCUIT µPC8126K 900 MHz BAND DIRECT QUADRATURE MODULATOR IC FOR DIGITAL MOBILE COMMUNICATION SYSTEMS DESCRIPTION The µPC8126K is a silicon monolithic integrated circuit designed as quadrature modulator for digital mobile communication systems. This IC integrates a pre-mixer for local signals plus a quadrature modulator operating from 889 MHz to 960 MHz. The chip which has been conventionally packaged in 20-pin SSOP is packaged in 28-pin QFN and therefore is suitable for higher density mounting. In addition, the IC has power save function and can operate 2.7 to 3.6 V supply voltage. Consequently the µPC8126K can contribute to make RF blocks smaller size, higher performance and lower power consumption. FEATURES • Directly modulate in 889 MHz to 960 MHz • Built-in pre-mixer for local signals • External IF filter can be applied between modulator output and pre-mixer input terminal. • Current consumption ICC = 35 mA TYP. @ VCC = 3.0 V • Equipped with power save function. • 28-pin QFN suitable for higher density mounting. APPLICATIONS • Digital cellular phones: PDC800M ORDERING INFORMATION Part Number µPC8126K-E1 Package 28-pin plastic QFN (5.1 × 5.5 × 0.95 mm) Supplying Form Embossed tape 12 mm wide. QTY 2.5 kp/reel. Pins 1 through 10 are in pull-out direction. Remark To order evaluation samples, please contact your local NEC sales office . (Part number for sample order: µPC8126K) Caution Electro-static sensitive device The information in this document is subject to change without notice. Document No. P13488EJ1V0DS00 (1st edition) Date Published February 1999 N CP(K) Printed in Japan © 1999 µPC8126K N. C. 23 GND 24 N. C. IF-LOin VPS2 GND N.C. MODout VCC3 N. C. INTERNAL BLOCK DIAGRAM AND PIN CONNECTIONS (Top View) 22 21 20 19 18 17 16 15 14 GND 13 Q 12 Qb 11 Ib 10 I 9 GND LO Pre-Mix RF-LOin 25 ÷2 N. C. 1 2 2 3 4 5 6 7 8 N. C. LO Buffer VPS1 28 Phase Shifter VCC2 GND LO×2 N. C. 27 LOin MIXout N. C. 26 LOinb VCC1 I/Q-Mix Preliminary Data Sheet P13488EJ1V0DS00 µPC8126K QUADRATURE MODULATOR SERIES PRODUCT Part Number Functions ICC (mA) fLO1in (MHz) fMODout Up-Converter (MHz) fRFout (MHz) µPC8101GR 150 MHz Quad.Mod 15/@2.7 V 100 to 300 50 to 150 µPC8104GR RF Up-Converter + IF Quad.Mod 28/@3.0 V 100 to 400 µPC8105GR 400 MHz Quad.Mod 16/@3.0 V 100 to 400 External µPC8110GR 1 GHz Direct Quad.Mod 24/@3.0 V 800 to 1 000 Direct µPC8125GR RF Up-Converter + IF Quad.Mod + AGC 36/@3.0 V 220 to 270 1 800 to 2 000 µPC8126GR 900 MHz Direct Quad.Mod 35/@3.0 V with Offset-Mixer 915 to 960 915 to 960 (LO pre-mixer) 889 to 960 889 to 960 µPC8126K µPC8129GR ×2LO IF Quad. Mod+RF Up-Converter Phase Shifter Package Application 20-pin CT-2 etc. SSOP (225 mil) 900 to 1 900 Doubler Digital Comm. + F/F External F/F 16-pin SSOP (225 mil) 20-pin PDC800 MHz, etc. SSOP (225 mil) PHS PDC800 MHz 28-pin QFN 28/@3.0 V 200 to 800 100 to 400 800 to 1 900 F/F 20-pin GSM, SSOP (225 mil) DCS1800, etc. µPC8139GR-7JH Transceiver IC (1.9 GHz Indirect Quad. Mod + RX-IF + IF VCO) TX: 32.5 RX: 4.8 /@3.0 V 220 to 270 1 800 to 2 000 CR 30-pin PHS TSSOP (225 mil) µPC8158K 28/@3.0 V 100 to 300 800 to 1 500 RF Up-Converter + IF Quad.Mod + AGC 28-pin QFN PDC800 M/1.5 G Remark For outline of the quadrature modulator series, please refer to the application note Usage of µPC8101, 8104, 8105, 8125, 8129 (Document No. P13251E) and so on. Preliminary Data Sheet P13488EJ1V0DS00 3 µPC8126K APPLICATION EXAMPLE [PDC800 MHz] SUB ANT LNA 1st MIX 2nd MIX SW TO DEMOD RSSI MAIN ANT RSSI OUT 1st LO SW 2nd LO PLL1 PLL2 SW I 0° φ (÷2) PA AGC ×2 Filter 90° Q µ PC8126 K This block diagram presents the IC’s location example applied in the system. The system block construction herein is an example. 4 Preliminary Data Sheet P13488EJ1V0DS00 µPC8126K ABSOLUTE MAXIMUM RATINGS Parameter Symbol Test Conditions Rating Unit Supply Voltage VCC TA = +25 °C 4.0 V Power Save Control Voltage VPS TA = +25 °C 4.0 V Power Dissipation PD TA = +85 °C 430 mW Operating Ambient Temperature TA –40 to +85 °C Storage Temperature Tstg –55 to +150 °C Note Note Mounted on a 50 × 50 × 1.6 mm double sided copper clad epoxy glass PWB. RECOMMENDED OPERATING CONDITIONS Parameter Symbol Test Conditions MIN. TYP. MAX. Unit Supply Voltage VCC 2.7 3.0 3.6 V Operating Ambient Temperature TA –25 +25 +75 °C Pre-Mix. RF Input Frequency fRFin 689 – 1 200 MHz Pre-Mix. RF Input Power PRFin –13 –11 –9 dBm 120 135 270 MHz –14 –12 –10 dBm fIFin = 200 MHz 889 – 898 MHz fIFin = 135 MHz 915 – 960 MHz Pre-Mix. IF Input Frequency fIFin Pre-Mix. IF Input Power PIFin Pre-Mix. Output Frequency (Modulator Output Frequency, Modulator LO Input Frequency) fMIXout (fMODout, fLOin) P (fIF × 7) ≤ –65 dBc Modulator LO Input Power PLOin –21.5 –18.5 –15.5 dBm I/Q Input Frequency fI/Qin DC – 10 MHz I/Q Input Amplitude VI/Qin Single ended Input – – 500 mVP-P Differential Input – – 250 Preliminary Data Sheet P13488EJ1V0DS00 5 µPC8126K ELECTRICAL CHARACTERISTICS (TA = +25°C, VCC1 = VCC2 = VCC3 = 3.0 V, VPS1, VPS2 ≥ 2.2 V unless otherwise specified) Parameter Symbol Test Conditions MIN. TYP. MAX. Unit No Input Signals 24 35 44 mA VPS ≤ 0.5 V (Low), No Input Signals – 0 15 µA fIFin = 135 MHz, PIFin = –12 dBm fRFin = 813 MHz, PRFin = –11 dBm fMODout = 948 MHz + fI/Q fI/Qin = 2.625 kHz VI/Qin = 500 mVP-P (Single ended) I/Q (DC) = Ib/Qb (DC) = VCC/2 Data Rate: 42 kbps, RNYQ: α = 0.5 MOD Pattern: All Zero –12 –9 –6 dBm – –35 –30 dBc – –40 –30 dBc – –45 –30 dBc – – –65 dBc MODULATOR + PRE-MIXER TOTAL (TEST CIRCUIT 1 unless otherwise specified) Total Circuit Current ICC (TOTAL) Total Circuit Current at Sleep Mode ICC (PS) TOTAL Modulator Output Power PMODout Local Oscillator Leakage LOL Note ImR Image Rejection I/Q 3rd Order Intermodulation P (fIF × 7) fIF-LO × 7 Harmonics Power Save Response Time IM3 (I/Q) Rise Time TPS (RISE) VPS: Low to High, TEST CIRCUIT 2 – 3 5 µs Fall Time TPS (FALL) VPS: High to Low, TEST CIRCUIT 2 – 3 5 µs EVM fIFin = 135 MHz, PIFin = –12 dBm fRFin = 813 MHz, PRFin = –11 dBm fMODout = 948 MHz + fI/Q fI/Qin = 2.625 kHz VI/Qin = 500 mVP-P (Single ended) I/Q (DC) = Ib/Qb (DC) = VCC/2 Data Rate: 42 kbps, RNYQ: α = 0.5 MOD Pattern: PN9 (Pseudorandom pattern) – 1.6 3.5 %rms – –65 –60 dBc Error Vector Magnitude Adjacent Channel Power ACP (∆f = ±50 kHz) Port Current-7 pin IPS (7 pin) No Input Signals – – 620 µA Port Current-17 pin IPS (17 pin) No Input Signals – – 400 µA Note fLOL = fIFin + fRFin 6 Preliminary Data Sheet P13488EJ1V0DS00 µPC8126K STANDARD CHARACTERISTICS FOR REFERENCE (TA = +25°C, VCC1 = VCC2 = VCC3 = 3.0 V, VPS1, VPS2 ≥ 2.2 V unless otherwise specified) Parameter Symbol Test Conditions MIN. TYP. MAX. Unit No Input Signals – 27.5 34 mA ICC (PS) (MOD) VPS ≤ 0.5 V (Low), No Input Signals – 0 10 µA Input Impedance I and Q Port ZI/Qin fI/Q = DC to 10 MHz 90 180 – kΩ Modulator Output Port VSWR VSWR (MOD) fMODout = 948 MHz – 1.5:1 – – ICC (MIX) No Input Signals – 7.5 10 mA VPS ≤ 0.5 V (Low), No Input Signals – 0 5 µA fRFin = 813 MHz, PRFin = –11 dBm fIFin = 135 MHz, PIFin = –12 dBm fMIXout = 948 MHz –5 –3 –1 dB –17 –15 –13 dBm MODULATOR (TEST CIRCUIT 3) Modulator Circuit Current Modulator Circuit Current at Sleep Mode ICC (MOD) PRE-MIXER (TEST CIRCUIT 4) Pre-Mixer Circuit Current Pre-Mixer Circuit Current at Sleep Mode ICC (PS) (MIX) Pre-Mixer Conversion Gain CG (MIX) Pre-Mixer Output Power Pout (MIX) Preliminary Data Sheet P13488EJ1V0DS00 7 µPC8126K PIN EXPLANATIONS Pin No. Symbol Supply Voltage (V) Pin Voltage (V) @3 V 2 LOinb – 2.6 Bypass of LO input for modulator. This pin should be externally grounded through around 33 pF capacitor. 4 LOin – 2.6 LO input for the phase shifter. Connect around 300 Ω between pin 4 and 5 to match to 50 Ω by LC. 6 VCC2 2.7 to 3.6 – 7 VPS1 (Modulator) VPS – Description 0 to 0.5 0 – 7 State ON (Active Mode) OFF (Sleep Mode) Ground pin for the modulator. Connect to the ground with minimum inductance. Track length should be kept as short as possible. 10 I VCC/2 – Input for I signal. This input impedance is 180 kΩ. In case of that I/Q input signals are single ended, amplitude of the signal is 500 mVP-P max. Note 11 Ib VCC/2 – Input for I signal. This input impedance is 180 kΩ. In case of that I/Q input signals are single ended, VCC/2 biased DC signal should be input. In case of that I/Q input signals are differential, amplitude of the signal is 250 m VP-P max. Note ––––––––––––– 10 Note Relations between amplitude and VCC/2 bias of input signal are following. 8 2 ––––––––––––– Power save control pin for the modulator can control On/Sleep state with bias as follows. 2.2 to 3.6 GND (Modulator) 4 Supply voltage pin for the phase shifter and IQ Mixer. An internal regulator helps keep the device stable against temperature or VCC variation. VPS (V) 9 Equivalent Circuit Preliminary Data Sheet P13488EJ1V0DS00 11 µPC8126K Pin No. Symbol Supply Voltage (V) Pin Voltage (V) @3 V 12 Qb VCC/2 – Description Input for Q signal. This input impedance is 180 kΩ. In case of that I/Q input signals are single ended, VCC/2 biased DC signal should be input. In case of that I/Q input signals are differential, amplitude of the signal is 250 mVP-P max. Note Equivalent Circuit 12 13 13 Q VCC/2 – Input for Q signal. This input impedance is 180 kΩ. In case of that I/Q input signals are single ended, amplitude of the signal is 500 mVP-P max. Note 14 GND (Modulator) 0 – Ground pin for the modulator. Connect to the ground with minimum inductance. Track length should be kept as short as possible. ––––––––––––– Supply voltage pin for the output buffer amplifier of modulator. An internal regulator helps keep the device stable against temperature or VCC variation. ––––––––––––– 16 17 VCC3 MODout 2.7 to 3.6 – – 1.6 Output pin from the modulator. This is emitter follower output. So this output impedance is low. 17 19 20 GND (Modulator) VPS2 (Pre-Mix) 0 VPS – – Ground pin for the modulator. Connect to the ground with minimum inductance. Track length should be kept as short as possible. Power save control pin can control the On/Sleep state with bias as follows. VPS (V) ––––––––––––– 20 State 2.2 to 3.6 ON (Active Mode) 0 to 0.5 OFF (Sleep Mode) Note Relations between amplitude and VCC/2 bias of input signal are following. Preliminary Data Sheet P13488EJ1V0DS00 9 µPC8126K Pin No. Symbol Supply Voltage (V) Pin Voltage (V) @3 V 21 IF-LOin – 1.3 Description Equivalent Circuit IF input pin for the Pre-Mixer. This pin is biased internally. Capacitor should be connected in series, and grounded through 51 Ω. 21 24 25 26 27 28 1, 3, 5, 8, 15, 18, 22, 23 10 GND (Pre-Mix) RF-LOin 0 – VCC1 (Pre-Mix) 2.7 to 3.6 Pre-Mixout 2.7 to 3.6 GND (Modulator) N.C. 0 – – 2.3 – – – – Ground pin for Pre-Mixer. Connect to the ground with minimum inductance. Track length should be kept as short as possible. RF input pin for the Pre-Mixer. This pin is biased internally. Capacitor should be connected in series, and grounded through 51 Ω. Supply voltage pin for the Pre-Mixer. An internal regulator helps keep the device stable against temperature or VCC variation. ––––––––––––– 25 ––––––––––––– Output from the Pre-Mixer. This pin is designed as open collector. Due to the high impedance output, this pin should be externally equipped with LC matching circuit to next stage. Ground pin for the modulator. Connect to the ground with minimum inductance. Track length should be kept as short as possible. 27 ––––––––––––– Non connection pins. ––––––––––––– Preliminary Data Sheet P13488EJ1V0DS00 µPC8126K RELATION BETWEEN I/Q PIN INPUT DC VOLTAGE AND AMPLITUDE I/Q input signal (mVP-P) Supply Voltage (V) VCC I/Q DC Voltage (V) VCC/2 = I = Ib = Q = Qb 2.7 to 3.6 1.35 to 1.8 Single ended input I=Q Differential input I = Ib = Q = Qb ≤ 500 ≤ 250 EXPLANATION OF INTERNAL FUNCTION Block 90° PHASE SHIFTER Function/Operation Input signal from LO is send to digital circuit of T-type flip-flop through frequency doubler. Output signal from T-type F/F is changed to same frequency as LO input and that have quadrature phase shift, 0°, 90 °, 180°, 270°. These circuits have function of self phase correction to make correctly quadrature signals. BUFFER AMP. Buffer amplifiers for each phase signals to send to each mixers. MIXER Each signals from buffer amp. are quadrature modulated with two double-balanced mixers. High accurate phase and amplitude inputs are realized to good performance for image rejection. ADDER Block Diagram from LOin ×2 ÷2F/F I Ib Qb Q Output signals from each mixers are added with adder and send to final amplifier. to MODout Preliminary Data Sheet P13488EJ1V0DS00 11 µPC8126K TEST CIRCUIT 1 Pre-mixer + Quadrature modulator (except Power save response time) Spectrum Analyzer Signal Generator Voltage Source Signal Generator VCC3 (MOD) VPS2 (Pre Mix) BPF 100 pF MODout Voltage Source IFin 1 000 pF 33 pF RFin 0.22 µF 51 Ω 1 000 pF VCC1 (Pre Mix) 100 pF 22 21 20 19 18 17 16 15 51 Ω 23 14 24 13 1 000 pF 33 pF 25 0.22É F Mixout 7 pF 1 pF 18 nH I/Q Mixer 15 nH 27 2.5 pF 2 7 pF 3 4 6.8 nH Iin 9 I/Q Singnal Generator 8 VPS1 (MOD) 1 000 pF 33 pF 2 pF 10 nH Voltage Source 0.22 µF Filter 12 7 300 Ω 33 pF 6.8 nH 5 6 100 pF Ib 10 I/Q Mixer 28 Qb 12 11 Frequency Doubler 1 5.6 nH TFF PreMixer 26 Qin 18 nH VCC2 (MOD) Preliminary Data Sheet P13488EJ1V0DS00 µPC8126K TEST CIRCUIT 2 Pre-mixer + Quadrature modulator (for Power save response time) Spectrum Analyzer Voltage Source Signal Generator Signal Generator VCC3 (MOD) VPS2 (Pre Mix) BPF 100 pF MODout Voltage Source IFin 1 000 pF 33 pF 51 Ω RFin VCC1 (Pre Mix) 0.22 µ F 1 000 pF 100 pF I/Q Singnal Generator 22 21 20 19 18 17 16 15 51 Ω 23 14 24 13 1 000 pF 33 pF 0.22 µ F 25 Mixout 7 pF 1 pF 18 nH I/Q Mixer 26 27 2.5 pF 2 7 pF 3 4 5 6 100 pF 300 Ω 33 pF 6.8 nH 1 000 pF Ib Iin 10 I/Q Mixer 28 Qb 12 11 Frequency Doubler 1 5.6 nH TFF PreMixer 15 nH Qin 7 9 Palse Pattern Generator 8 VPS1 (MOD) 33 pF Voltage Source 0.22 µF 6.8 nH Filter 2 pF 10 nH 18 nH VCC2 (MOD) Preliminary Data Sheet P13488EJ1V0DS00 13 µPC8126K TEST CIRCUIT 3 Quadrature modulator block Spectrum Analyzer or Network Analyzer Voltage Source VCC3 (MOD) 100 pF MODout 1 000 pF 33 pF 22 21 20 19 18 0.22 µF 17 16 15 23 14 24 13 25 12 26 11 27 10 28 9 1 2 3 300 Ω 33 pF 33 pF 4 5 6 100 pF 7 1 000 pF 8 Qin Qb Ib Iin Voltage Source Pulse Pattern Generator VPS1 (MOD) 6.8 nH Voltage Source 0.22 µ F LOinb 2 pF VCC2 (MOD) Signal Generator LOin In this case, pin 20 to 27 should be opened or grounded. 14 Preliminary Data Sheet P13488EJ1V0DS00 I/Q Signal Generator µPC8126K TEST CIRCUIT 4 Pre-mixer block Signal Generator Signal Generator Voltage Source BPF Voltage Source IFin 51 Ω VCC1 (Pre Mix) RFin 100 pF 0.22 µF Mixout VCC3 (MOD) 1 000 pF VPS2 (Pre Mix) 22 1 000 pF MODout 51 Ω 21 20 19 18 17 16 15 23 14 24 13 25 12 26 11 27 10 28 9 33 pF 1 pF 18 nH 15 nH Spectrum Analyzer 1 2 LOinb 3 4 5 6 7 Qin Qb Ib Iin 8 VPS1 (MOD) LOin VCC2 (MOD) Preliminary Data Sheet P13488EJ1V0DS00 15 µPC8126K PACKAGE DIMENSIONS 0.22 0.5 0.125 0.95 ± 0.1 28 pin 1 pin 0.22 (4.7) (5.1 ± 0.1) 5.1 ± 0.1 2 × 0.5 = 1 1.2 2 × 0.5 = 1 4 – 0.5 0.5 4 – 0.5 28 pin plastic QFN (UNIT: mm) 0.5 7 × 0.5 = 3.5 (5.1) 0.5 (4.1) (5.5 ± 0.1) (0.22) 0.3 0.5 5.5 ± 0.1 (0.22) 0.5 (4.5) Bottom View 16 Preliminary Data Sheet P13488EJ1V0DS00 0.5 µPC8126K NOTE ON CORRECT USE (1) Observe precautions for handling because of electrostatic sensitive devices. (2) Form a ground pattern as widely as possible to minimize ground impedance (to prevent undesired operation). (3) Keep the track length between the ground pins as short as possible. (4) Connect a bypass capacitor (example 1 000 pF) to the VCC pin. RECOMMENDED SOLDERING CONDITIONS This product should be soldered under the following recommended condition. For soldering methods and conditions other than those recommended below, contact your NEC sales representative. Soldering Method Soldering Conditions Recommended Condition Symbol Infrared Reflow Package peak temperature: 235°C or below Time: 30 seconds or less (at 210°C) Note Count: 2, Exposure limit : None IR35-00-2 Partial Heating Pin temperature: 300°C Time: 3 seconds or less (per side of device) Note Exposure limit : None – Note After opening the dry pack, keep it in a place below 25°C and 65% RH for the allowable storage period. Caution Do not use different soldering methods together (except for partial heating). For details of recommended soldering conditions for surface mounting, refer to information document SEMICONDUCTOR DEVICE MOUNTING TECHNOLOGY MANUAL (C10535E). Preliminary Data Sheet P13488EJ1V0DS00 17 µPC8126K [MEMO] 18 Preliminary Data Sheet P13488EJ1V0DS00 µPC8126K [MEMO] Preliminary Data Sheet P13488EJ1V0DS00 19 µPC8126K The application circuits and their parameters are for reference only and are not intended for use in actual design-ins. No part of this document may be copied or reproduced in any form or by any means without the prior written consent of NEC Corporation. NEC Corporation assumes no responsibility for any errors which may appear in this document. NEC Corporation does not assume any liability for infringement of patents, copyrights or other intellectual property rights of third parties by or arising from use of a device described herein or any other liability arising from use of such device. No license, either express, implied or otherwise, is granted under any patents, copyrights or other intellectual property rights of NEC Corporation or others. While NEC Corporation has been making continuous effort to enhance the reliability of its semiconductor devices, the possibility of defects cannot be eliminated entirely. To minimize risks of damage or injury to persons or property arising from a defect in an NEC semiconductor device, customers must incorporate sufficient safety measures in its design, such as redundancy, fire-containment, and anti-failure features. NEC devices are classified into the following three quality grades: "Standard", "Special", and "Specific". The Specific quality grade applies only to devices developed based on a customer designated "quality assurance program" for a specific application. The recommended applications of a device depend on its quality grade, as indicated below. Customers must check the quality grade of each device before using it in a particular application. Standard: Computers, office equipment, communications equipment, test and measurement equipment, audio and visual equipment, home electronic appliances, machine tools, personal electronic equipment and industrial robots Special: Transportation equipment (automobiles, trains, ships, etc.), traffic control systems, anti-disaster systems, anti-crime systems, safety equipment and medical equipment (not specifically designed for life support) Specific: Aircrafts, aerospace equipment, submersible repeaters, nuclear reactor control systems, life support systems or medical equipment for life support, etc. The quality grade of NEC devices is "Standard" unless otherwise specified in NEC's Data Sheets or Data Books. If customers intend to use NEC devices for applications other than those specified for Standard quality grade, they should contact an NEC sales representative in advance. Anti-radioactive design is not implemented in this product. M4 96. 5