MHz to MHz Direct Quadrature Modulator STQ-6(Z) MHZ TO MHZ DIRECT QUADRATURE MODULATOR RFMD Green, RoHS Compliant, Pb-Free (Z Part Number) Package: TSSOP, 6-Pin,.mmx6.mmx.mm Product Description RFMD s STQ-6Z is a direct quadrature modulator targeted for use in a wide range of communications systems, including cellular/pcs, GSM, CDMA, TETRA, and ISM datacom. This device features a wide MHz to MHz operating frequency band, excellent carrier and sideband suppression, and a low broadband noise floor. The STQ-6 uses silicon germanium (SiGe) device technology and delivers a typical output power of -9dBm with greater than 6dB IM suppression. A digital input shut-down feature is included that, when enabled, attenuates the output by 6dB. The device is packaged in an industry standard 6-pin TSSOP with exposed paddle for superb RF and thermal ground. Optimum Technology Matching Applied GaAs HBT GaAs MESFET InGaP HBT SiGe BiCMOS Si BiCMOS SiGe HBT GaAs phemt Si CMOS Si BJT GaN HEMT RF MEMS The matte tin finish on Sirenza s lead-free package utilizes a post annealing process to mitigate tin whisker formation and is RoHS compliant per EU directive /9. This package is also manufactured with green molding compounds that contain no antimony trioxide nor halogenated fire retardants. g BBQP VEE LOP LON VEE SD BBIP 6 7 8 LO QUADRATURE GENERATOR 6 9 BBQN VEE RFP RFN VEE BBIN Features Available in Lead Free, RoHS Compliant, and Green Packaging Excellent Carrier Feedthrough, -8dBm Constant Over Output Power Output PdB +dbm Very Low Noise Floor, -dbm/hz Typical Wide Baseband Input, DC to MHz Superb Phase Accuracy and Amplitude Balance, ±. C/±.dB Low LO Drive Requirement, -dbm Applications Cellular/PCS/GSM/CDMA Transceivers TETRA GMSK, QPSK, QAM, SSB Mod. -+ Parameter Specification Min. Typ. Max. Unit Condition RF Output: TA= C RF Frequency Range MHz Output Power - -9-7 dbm (Baseband input level 6mV P-P differential) RF Port Return Loss >, to db Matched to using schematic shown on page MHz >, 7 to MHz Output PdB + +6 dbm (Baseband input level.8v P-P differential typical) Carrier Feedthrough -8 - dbm Sideband Suppression db IM Suppression 8 6 db -tone BB input @ 6mV P-P diff. per tone, khz spacing Broadband Noise Floor - -* dbm/hz Baseband inputs tied to.9v DC, -MHz offset from carrier Quadrature Phase Error -. ±. +. C I/Q Amplitude Balance -. ±. +. db Supply Voltage +.7 +. +. V Supply Current 8 86 ma Device Thermal Resistance C/W Junction to case Test Conditions: V CE =.7V, I Q =ma Typ. (unless otherwise noted), T L = C. OIP Tone Spacing=MHz, P OUT per tone=-dbm. [] Data with Application Circuit. RF MICRO DEVICES, RFMD, Optimum Technology Matching, Enabling Wireless Connectivity, PowerStar, POLARIS TOTAL RADIO and UltimateBlue are trademarks of RFMD, LLC. BLUETOOTH is a trademark owned by Bluetooth SIG, Inc., U.S.A. and licensed for use by RFMD. All other trade names, trademarks and registered trademarks are the property of their respective owners. 6, RF Micro Devices, Inc. support, contact RFMD at (+) 6-678-7 or sales-support@rfmd.com. of 8
Absolute Maximum Ratings Parameter Rating Unit Supply Voltage (V CC ) 6. V DC LO, RF Input (LOP, LON, RFP, RFN) + dbm Baseband Min Input Voltage (BBIP, BBIN, BBQP BBQN) V DC Baseband Max Input Voltage (BBIP, BBIN, BBQP, BBQN) V DC Operating Temperature - to +8 C Storage Temperature -6 to + C *Note: Load condition, Z L =. Load condition, Z L =: VSWR. Operation of this device beyond any one of these limits may cause permanent damage. For reliable continuous operation, the device voltage and current must not exceed the maximum operating values specified in the table on page one. Bias Conditions should also satisfy the following expression: I D V D <(T J -T L )/R TH, j-l and T L =T LEAD Parameter Specification Min. Typ. Max. Unit Condition Baseband Modulation Input: T A = C Baseband Frequency Input DC MHz -db bandwidth, baseband inputs terminated in Baseband Input Resistance. k Per pin Baseband Input Capacitance. pf Per pin LO Input: T A = C LO Frequency MHz LO Drive Level -8 - - dbm LO Port Return Loss >, to, >, 7 to Miscellaneous: T A = C MHz Caution! ESD sensitive device. Exceeding any one or a combination of the Absolute Maximum Rating conditions may cause permanent damage to the device. Extended application of Absolute Maximum Rating conditions to the device may reduce device reliability. Specified typical performance or functional operation of the device under Absolute Maximum Rating conditions is not implied. RoHS status based on EUDirective/9/EC (at time of this document revision). The information in this publication is believed to be accurate and reliable. However, no responsibility is assumed by RF Micro Devices, Inc. ("RFMD") for its use, nor for any infringement of patents, or other rights of third parties, resulting from its use. No license is granted by implication or otherwise under any patent or patent rights of RFMD. RFMD reserves the right to change component circuitry, recommended application circuitry and specifications at any time without prior notice. Matched to using schematic shown on page Shut-Down Supply Current 6 ma Shut-down enabled Shut-Down Attenuation 6 db Shut-Down Pin Resistance.9 k @ MHz Shut-Down Pin Capacitance. pf @ MHz Shut-Down Control Voltage Thresholds.7 V CC V Shut-Down disabled (normal operation).. V Shut-Down enabled Shut-Down Settling Time < ns Test Conditions (for all product specification tables unless otherwise noted): V CC (pins,, )=+V, T A =+ C, Baseband Input (Pins, 8, 9, 6)=.9V DC bias, khz frequency, mv P-P per pin=6mv P-P differential drive, I and Q signals in quadrature, LO Input (Pins, )=-dbm @ to MHz of 8 support, contact RFMD at (+) 6-678-7 or sales-support@rfmd.com.
MHz to MHz Typical Device Performance SSB Power [dbm] Carrier Feedthrough [dbm] SSB Output Power[dBm] -8-8. -9-9. - -. - -. - -. -C C +8C SSB Power vs. LO Frequency - 6 7 8 9 LO Frequency [MHz] - - - -6-8 - - - - - - - - -6-7 -8-9 Carrier Feedthrough vs. LO Frequency -6 -C -8 C +8C - 6 7 8 9 LO Frequency [MHz] fundamental (each tone) IM (each tone) Intermodulation Distortion vs. BB Input Level @ 8MHz - -. -. -8. -6. -. -.... BB Input Level [dbvp-p diff.] Output PdB [dbm] S [db] 6 - - - - - -C C +8C RF & LO Port Match (for schematic shown on page ) RF Port LO Port Output PdB vs. LO Frequency 6 7 8 9 LO Frequency [MHz] 8 6 8 6 Sideband Suppression vs. LO Frequency -C C +8C 6 7 8 9 LO Frequency [MHz] Sideband Suppression [db] - 6 7 8 9 Frequency [MHz] support, contact RFMD at (+) 6-678-7 or sales-support@rfmd.com. of 8
Pin Function Description BBQP Q-channel baseband input, positive terminal. Nominal DC bias voltage is.9v (biased internally). Positive supply (+V). VEE Ground. LOP Local oscillator input, positive terminal. Nominal DC voltage is.v. Input should be AC-coupled. LON Local osicillator input, negative terminal. Nominal DC voltage is.. Input should be AC-coupled. 6 VEE Ground. 7 SD Shut-down control. Logic high=normal operation; logic low=shut-down enabled. 8 BBIP I-channel baseband input, positive terminal. Nominal DC bias voltage is.9v (biased internally). 9 BBIN I-channel baseband input, negative terminal. Nominal DC bias voltage is.9v (biased internally). Positive supply (+V). VEE Ground. RFN RF output, negative terminal. Nominal DC voltage is.v. Output should be AC-coupled. RFP RF output, positive terminal. Nominal DC voltage is.v. Output should be AC-coupled. VEE Ground. Positive supply (+V). 6 BBQN Q-channel baseband input, negative terminal. Nominal DC bias voltage is.9v (biased internally).. (.). (.).9 (.) Suggested Pad Layout.8 (.). (.6).8 (.) I. (.) via. (.9).8 (.7).7 (6.9) all units are in inches (mm) - Indicates metalization - vias connect pad to underlying ground plane of 8 support, contact RFMD at (+) 6-678-7 or sales-support@rfmd.com.
Package Drawing Dimensions in inches (millimeters) Refer to drawing posted at www.rfmd.com for tolerances. support, contact RFMD at (+) 6-678-7 or sales-support@rfmd.com. of 8
Application Schematic MHz to MHz Application Schematic BBQP P8 P9 BBQN khz sine m V am plitude degree phase 9 khz sine m V am plitude +9 degree phase P - for interm odulation tests, synthesizer set for khz and khz sine outputs on I and Q channels LOin Shut-dow n H SH C T L H R U 6 BBQP BBQN C6 C9 C C VEE VEE LOP RFP STQ-6 LON RFN 6 VEE VEE C C 7 SD 6 C7 8 BBIP 9 BBIN C8 R8 R9 R BBIP P Direct Quadrature Modulator: General Test Set-Up.K BBI BBQ K.K.9.K K.K.9 99 K P R7 AD88 + K VOCM - 99 99 K -dbm K LO AD88 + K VOCM - 99 K BBIN LO M atch T Connect backside exposed paddle to RF/DC ground. BBI+ 6m V p-p differential RF+ RF RF- Match BBQ- 9 STQ-6 6m V p-p differential RFout P DC levels for BBIN, BBIP, BBQN, BBQP are.9v nom inal. The offset required to null carrier feedthrough is typically <m V. +V LO- BBQ+ BBI- LO+ RF out 6 of 8 support, contact RFMD at (+) 6-678-7 or sales-support@rfmd.com.
Bill of Materials (for MHz to MHz Evaluation Board P/N STQ-6EVB) Component Value Qty Vendor Part Number Description Designator U SMDI STQ-6 SiGe Direct Quadrature Modulator P8, P9, P, P, P, P 6 Johnson Components -7-8 SMA connector, end launch with tab, for.6 thick board H, H AMP 6- -pin header, right angle T, T : M/A COM ETC-- RF transformer,.mhz to MHz L uh Panasonic ELJ-FARKF Inductor, footprint, ±% tolerance R, R7, R9, R Venkel CR6-8W-T Resistor, 6 footprint, ±% tolerance R8 k Venkel CR6-6W-FT Resistor, 6 footprint, ±% tolerance C6, C8 pf Venkel C6COG- JNE Capacitor, 6 footprint, COG dielectric, ±% tolerance C9, C7 nf Venkel C6COG- JNE Capacitor, 6 footprint, COG dielectric, ±% tolerance C.uF Venkel C6YV6- ZNE Capacitor, 6 footprint, YV dielectric, 6V rating C, C, C, C6 pf Venkel C6COG- JNE Capacitor, 6 footprint, COG dielectric, ±% tolerance SH M 999- Shunt for -pin header Ordering Information Part Number Reel Size Devices/Reel STQ-6(Z) 7 support, contact RFMD at (+) 6-678-7 or sales-support@rfmd.com. 7 of 8
8 of 8 support, contact RFMD at (+) 6-678-7 or sales-support@rfmd.com.