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| ZXCD1000 HIGH FIDELITY CLASS D AUDIO AMPLIFIER SOLUTION DESCRIPTION The ZXCD1000 provides complete control and modulation functions at the heart of a high efficiency high performance Class D switching audio amplifier solution. In combination with custom output magnetics (ZXFN1000) and Zetex HDMOS MOSFET devices, the ZXCD1000 provides a high performance Class D audio amplifier with all the inherent benefits of Class D. The ZXCD1000 solution uses proprietary circuitry and magnetic technology to realise the true benefits of Class D without the traditional drawback of poor distortion performance. The combination of circuit design, magnetic component choice and layout are essential to realising these benefits. The ZXCD1000 reference designs give output powers up to 50W rms with typical open loop (no feedback) distortions of less than 0.2% THD + N over the entire audio frequency range at 90% full output power. This gives an extremely linear system. The addition of a minimum amount of feedback (10dB) further reduces distortion figures to give < 0.1 % THD + N typical at 1kHz. From an acoustic point of view, even more important than the figures above, is that the residual distortion is almost totally free of any crossover artifacts. This allows the ZXCD1000 to be used in true hi-fi applications. This lack of crossover distortion, sets the ZXCD1000 solutions quite apart from most other presently available low cost solutions, which in general suffer from severe crossover distortion problems. FEATURES * * * * * * * * * 90% efficiency 4 / 8 drive capability Noise Floor -115dB for solution Flat response 20Hz - 20kHz High gate drive capability ( 2200pF) Very low THD + N 0.1% typical full power full band ( for the solution) Complete absence of crossover artifacts OSC output available for sync in multi-channel applications Available in a 16 pin eQSOP package APPLICATIONS * * * * * * * Automotive audio systems Home Theatre Multimedia Wireless speakers Portable audio Sub woofer systems Public Address system THD + N (%) Distortion v Power 8 open loop at 1kHz. 10W 1W 5W Output Power The plot shows Distortion v Power into an 8 load at 1kHz. This plot clearly demonstrates the unequalled performance of the Zetex solution. Typical distortion of 0.05% at 1W can be seen with better than 0.15% at 10W. Truly world class performance. ISSUE 1 -MARCH 2001 1 ZXCD1000 ABSOLUTE MAXIMUM RATINGS Terminal Voltage with respect to GND VCC Power Dissipation Operating Temperature Range Storage Temperature Range 20V 1W -40C to 70C -50C to 85C Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICS TEST CONDITIONS (unless otherwise stated) VCC = 16V, TA = 25C SYMBOL V CC I ss PARAMETER Operating Voltage Range Operating Quiescent Current CONDITIONS MIN 12 V CC = 12V V CC = 18V V CC = 16V C osc = 330pF C osc = 330pF No load No load Load Capacitance = 2200pF 1F Decoupling 1F Decoupling 5.23 8.32 1.35k 1.35k 2.95 2.95 0.89 7.5 150 LIMITS TYP 16 40 40 40 200 250 +/-25 100 UNITS MAX 18 V mA mA mA kHz % mV V F osc F osc(tol) Vol OutA/B Voh OutA/B T Drive 5V5tol 9VA/Btol Audio A / B Triangle A/B Audio A / B Triangle A/B Osc A / B Switching Frequency Frequency Tolerance Low level output voltage High level output voltage Output Drive Capability (OUT A / B Rise/Fall) Internal Rail Tolerance Internal Rail Tolerance Input Impedence Input Impedence Bias Level Bias Level Amplitude 50 5.5 8.75 1.8k 1.8k 3.1 3.1 1.05 5.77 9.18 2.3k 2.3k 3.25 3.25 1.2 ns V V Ohms Ohms V V V ISSUE 1 - MARCH 2001 2 ZXCD1000 Pin number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Pin Name Audio A Triangle A Osc A Dist C osc Osc B Triangle B Audio B Gnd OUT B Gnd2 9VB VCC 9VA OUT A 5V5 Pin Description Audio Input for Channel A Triangle Input for Channel A Triangle Output No connection External timing capacitor node (to set the switching frequency) Triangle Output (for slave ZXCD1000 in stereo application) Triangle Input for Channel B Audio Input for Channel B Small Signal GND Channel B PWM Output to drive external Bridge MOSFETs Power GND (for Output Drivers) Internal Supply Rail (Decouple with 1F Cap) Input Supply Pin (Max = 18V) Internal Supply Rail (Decouple with 1F Cap). Channel A PWM Output to drive external Bridge MOSFETs Internal Supply Rail (Decouple with 1F Cap) Audio A Triangle A Osc A Dist Cosc Osc B Triangle B Audio B 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 5V5 Out A 9VA VCC 9VB Gnd2 Out B Gnd Figure 1 Pin Connection Diagram ISSUE 1 -MARCH 2001 3 ZXCD1000 ZXCD1000 Class D controller IC A functional block diagram of the ZXCD1000 is shown in Figure 2. The on chip series regulators drop the external VCC supply (12V-18V) to the approximate 9V (9VA/9VB) and 5.5V (5V5) supplies required by the internal circuitry. A triangular waveform is generated on chip and is brought out at the OscA and OscB outputs. The frequency of this is set (to ~200kHz) by an external capacitor (Cosc) and on chip resistor. The triangular waveform must be externally AC coupled back into the ZXCD1000 at the TriangleA and TriangleB inputs. AC Triangle B coupling ensures symmetrical operation resulting in minimal system DC offsets. TriangleA is connected to one of the inputs of a comparator and TriangleB is connected to one of the inputs of a second comparator. The other inputs of these two comparators are connected to the AudioA and AudioB inputs, which are anti-phase signals externally derived from the audio input. The triangular wave is an order higher in frequency than the audio input (max 20kHz). The outputs of the comparators toggle every time the TriangleA/B and the (relatively slow) AudioA/B signals cross. Triangle A Osc A 4 5 3 Osc B Cosc Dist 67 2 Oscillator & Ramp Generator Osc Buffers Audio A 1 Audio B 8 VCC Internal 5V5 PreDriver PWM Comp A PreDriver PWM Comp B O/P Driver Out A 15 Out B 10 O/P Driver 13 Internal 9V Gnd Figure 2. Functional Block Diagram Gnd2 9VA 9VB 5V5 14 12 16 9 11 ISSUE 1 - MARCH 2001 4 ZXCD1000 PWM Comparator Audio A/B Audio A/B Triangle A/B O/P Triangle A/B Comparator O/P (Duty Cycle = 50%) Figure 3a. Triangle A/B Audio A/B O/P Figure 3b. Triangle A/B Audio A/B Comparator O/P (Duty Cycle = 75%) Comparator O/P (Duty Cycle = 25%) Figure 3c. Figure 3d. Figures 3a,3b,3c and 3d The audio input Pulse Width Modulates the comparator output. With no audio input signal applied, the AudioA/B inputs are biased at the mid-point of the triangular wave, and the duty cycle at the output of the comparators is nominally 50%. As the AudioA/B signal ascends towards the peak level, the crossing points with the (higher frequency) triangular wave also ascend. The comparator monitoring these signals exhibits a corresponding increase in output duty cycle. Similarly, as the AudioA/B signal descends, the duty cycle is correspondingly reduced. Thus the audio input Pulse Width Modulates the comparator outputs. This principle is illustrated in Figures 3a, b, c and d. The comparator outputs are buffered and used to drive the OutA and OutB outputs. These in turn drive the speaker load (with the audio information contained in the PWM signal) via the off chip output bridge and single stage L-C filter network. The ramp amplitude is approximately 1V. The AudioA, AudioB, TriangleA and TriangleB inputs are internally biased to a DC voltage of approximately VCC/5. The mid - point DC level of the OscA and OscB triangular outputs is around 2V. The triangular wave at the Cosc pin traverses between about 2.7Vand 3.8V and the dist pin exhibits a roughly square wave from about 1.4V to 2V. (The above voltages may vary in practice and are included for guidance only). ISSUE 1 -MARCH 2001 5 ZXCD1000 VCC D2 A1a R4 47k R5 56R Q1 ZXM64P03X D2 C18 C10 68F 100n A1b L1 ZXFN1000 1/2 NE5532 AUDIO INPUT C2 22F C11 C3 R16 2k7 1 100n D1 C13 C15 C34 100n 16 15 14 13 12 11 10 9 22F 100F 20uH C17 100n A4b R1 100R U2 22F R3 56R Q2 ZXM64N03X ZXCD1000 Audio A Triangle A OscA Dist Cosc OscB Triangle B Audio B U1 5V5 Out A 9VA VCC 9VB Gnd2 Out B Gnd C23 C27 470n 470n C24 470n C1 2n2 Gnd INPUT C8 2n2 2 C4 47n 3 4 5 6 D1 A4a 12V REG R2 47k SPEAKER A R13 2k7 R17 **** VCC 2 GND 6 12V REG R10 10k R14 2k7 C6 270pF C5 47n 7 8 D3 A1a R6 47k R7 C12 C14 C16 100n 22F 100F 56R C35 Q3 ZXM64P03X L2 **** SPEAKER B 1/2 NE5532 C7 R11 2k7 U2 22F R15 2k7 D3 C19 100n A1b ZXFN1000 20uH C9 2n2 R12 2k7 C22 22F C21 100n D4 C20 100n A4b R8 56R Q4 ZXM64N03X C28 470n C25 470n C26 470n 78L12 U3 VCC 1 VI VO 3 12V REG D4 A4a R9 47K ISSUE 1 - MARCH 2001 C29 2200F C32 100F C33 100n C30 100n C31 22F R17 / C35 are optional components Figure 4 Zetex Class D 25W Mono Open Loop Solution ZXCD1000 Class D 25W Mono Open Loop (Bridge Tied Load - BTL) Solution - Circuit Description Proprietary circuit design and high quality magnetics are necessary to yield the high THD performance specified. Deviation from the Zetex recommended solution could significantly degrade performance. The speaker is connected as a Bridge Tied Load (BTL). This means that both sides of the speaker are driven from the output bridge and therefore neither side of the speaker connects to ground. This allows maximum power to be delivered to the load, from a given supply voltage. The supply voltage for this solution is nominally 16V. A schematic diagram for the solution is shown in Figure 4. The audio input is AC coupled and applied to a simple R-C (R1 and C1) low pass filter and a phase splitter built around the NE5532 dual op-amp. One of these op-amps is configured as a voltage follower and the other as a X1 inverting amplifier. This produces in phase and inverted signals for application to the ZXCD1000. The op-amp outputs are AC coupled into the ZXCD1000 Audio A and Audio B inputs via simple R-C low pass filters (R16/C8 and R15/C9). The op-amps are biased to a DC level of approximately 6V by R11 and R12. The Pulse Width Modulated (PWM) outputs, OutA and OutB, which contain the audio information, are AC coupled and DC restored before driving the Zetex ZXM64P03X and ZXM64N03X PMOS and NMOS output bridge FET's. AC coupling is via C17, C18, C19 and C20. DC restoration is provided by the D2(A1a)/R4, D1(A4a)/R2 and D3(A1a)/R6, D4(A4a)/R9 components. This technique allows the output stage supply voltage to be higher than the high level of the OutA and OutB outputs (approximately 8.5V), whilst still supplying almost the full output voltage swing to the gates of the bridge FET's (thereby ensuring good turn on). This can be exploited to yield higher power solutions with higher supply voltages - this is discussed later. The resistor/diode combinations (R5/D2(A16), R3/D1(A46), R7/D3(A16) and R8/D4(A46)) in series with the bridge FET gates, assist in controlling the switching of the bridge FET's. This design minimises shoot through currents whilst still achieving the low distortion characteristics of the system. The purpose of the (ZXFN1000) inductors in conjunction with the output capacitors C23, C24, C25 and C26 is to low pass filter the high frequency ISSUE 1 -MARCH 2001 7 switching PWM signal that comes from the bridge. Thus the lower frequency audio signal is recovered and is available at the speakerA and speakerB outputs across which the speaker should be connected. The ZXFN1000 magnetics form an integral part of, and are specially designed for, the Zetex solution. The optional components R17 and C3 form a Zobel network. The applicability of these depends upon the application and speaker characteristics. Suggested values are 47nF and 10 ohms Efficiency The following plots show the measured efficiency of the Zetex solution at various power levels into both 4 and 8 loads. As a comparison, typical efficiency is plotted for a class A-B amplifier. They clearly demonstrate the major efficiency benefits available from the Zetex class D solution. ZXCD1000 Class D 25W Mono Open Loop (Bridge Tied Load - BTL) Solution - PCB description and Operation. The top copper, the bottom copper and the silk screen (top) are shown in Figures 5, 6 & 7 respectively, for the double sided PCB implementation of the applications circuit of Figure 4. A component listing is given in the BOM (Bill of Materials) table. Gerber files for this solution are available from Zetex Plc. The board operates from a 16V (nom.) supply which should be applied to the underside of the supply decoupling capacitor C29. The audio input and speaker connections should be made to the solder pads indicated on Figure 7. The audio input should have a maximum amplitude of approximately 1V pk-pk. For diagnostic purposes, the speaker outputs can be monitored single-endedly with respect to ground with an oscilloscope (or other instrument) if desired. However remember that the speaker is connected as a Bridge Tied Load, therefore any results obtained in this manner, are not valid for assessing performance. The true performance depends upon some differential cancellation across the speaker load. To view the differential output across speakerA and speakerB, a floating monitor must be used i.e. neither side of the speaker should be grounded! For example, this can be achieved with a two channel oscilloscope by monitoring the speakerA and speakerB outputs, and using the invert and add functions. Figure 6. Class D 25W Mono O.L. PCB Bottom Copper (Actual Size) The exposed pad on the underside of the ZXCD1000 eQSOP package should be soldered down to the PCB. This in conjunction with vias and top and bottom copper areas, functions as a heat sink. Speaker Outputs Audio Input Figure 7. Class D 25W Mono O.L. PCB Silk Screen (Actual Size) Plots of typical performance for the solution are shown in the included graphs. As previously stated, a very important feature of the Zetex solution is that the residual distortion is almost totally free of any crossover artifacts. This lack of crossover distortion sets the ZXCD1000 solutions quite apart from most other presently available low cost solutions, which in general suffer from severe crossover distortion problems. Figure 5. Class D 25W Mono O.L. PCB Top Copper (Actual Size) ISSUE 1 - MARCH 2001 8 ZXCD1000 It is well known that this kind of distortion is particularly unpleasant to the listener. The two scope traces clearly show the lack of such artifacts with the Zetex solution Other Solutions - Stereo, Closed Loop and Higher Powers. STEREO It is possible to duplicate the above solution to give a 2 channel stereo solution. However if the oscillator frequencies are not locked together, a beat can occur which is acoustically audible. This is undesirable. A stereo solution which avoids this problem can be achieved by synchronising the operating frequencies of both ZXCD1000's class D controller IC's, by slaving one device from the other. This is illustrated in Figure 8. ZXCD1000 CX1 Audio A Triangle A Osc A Dist 5V5 Out A 9VA VCC 9VB Gnd2 Out B Gnd RX1 1.5k MASTER Cosc Osc B ZETEX Class D Solution. (10W into 4) Note lack of Crossover Artifacts Triangle B RX2 1.5k Audio B CX2 ZXCD1000 Audio A Triangle A 5V5 Out A 9VA VCC 9VB Gnd2 Out B Gnd O/C Osc A Dist Cosc SLAVE O/C Osc B Triangle B Audio B Figure 8. Frequency sync for Stereo Apps. Here OscA on the master is used to drive both TriangleA and TriangleB inputs on the master. OscB on the master is used to drive both TriangleA and TriangleB inputs on the slave. In order to achieve the increased drive capabilty required by the OscA/B outputs on the master, 1.5k pull down resistors are added from these pins to ground. The slave oscillator is disabled by connecting pin 4 (dist) to ground. Great care must be taken when linking the triangle from the master to the slave. Any pickup can cause slicing errors and result in increased distortion. The best connection method is to run two tracks, side by side, from the master to the slave. One of these tracks would be the triangle itself, and the other would be the direct local ground linking the master pin9 ground to the slave pin 9 ground. Typical Class D Solution. Note Large Crossover Artifacts ISSUE 1 -MARCH 2001 9 D1 R1 47K VCC 1N4148 R30 10R C17 R2 Q1 ZXM64P03X 75R 2200F 20V ZXCD1000 D2 C6 1F 1N4148 ZXFN1000 20uH D3 C27 22F 1 Audio A 5V5 Out A 9VA VCC 13 1N4148 12 11 1F 10 9 1N4148 14 15 1F 75R Triangle A OscA 16 BRIDGE O/P A SPEAKER A C7 IC1 C4 R3 C1 1F 3 4 2 1F 1N4148 Q3 ZXM64N03X R22 3.9K C10 1F D4 47K R4 R14 5 Cosc 9VB Gnd2 Out B OscB Triangle B 6 Dist R9 560R 1/2 LM358D C13 C2 7 8 Audio B Gnd 1F 2.2nF ZXCD1000 C5 10K 2 C24 ***** 1 R10 7 330pF 1/2 LM358D C3 R13 10k D5 R5 47K VCC 3 5 10K R6 75R Q2 ZXM64P03X 10 R23 560R 2.2nF 6 D6 C8 1F 1N4148 R12 R15 C14 R11 R43 3.9K 10K ZXFN1000 BRIDGE O/P B R17 ***** 2.4K 1k C12 10F D7 C9 1F 1N4148 20H Q4 R7 75R ZXM64N03X SPEAKER B C42 C20 R28 1.6k 47F R24 0.1u 220R D8 R16 R29 C22 680pF 15k 1N4148 R8 47K C11 1F R31 1/2 RC4558D 2 1 2.7k 1.5k 3.9k C21 R18 8.2k R27 6 7 5 R25 10k R40 430R R32 3 3.3F R20 10k R26 10k R41 430R AUDIO INPUT 10k R21 1.5k C18 R19 4.7k 47F C40 1/2 RC4558D 47n C41 47n ISSUE 1 - MARCH 2001 Figure 9. 25W Mono with Feedback ZXCD1000 Class D 25W Mono Bridge Tied Load (BTL) Solution with Feedback - Circuit Description With the addition of feedback (hence closed loop solution) it is possible to obtain even better THD performance. A schematic diagram for this is shown in Figure 9. Again proprietary circuit and special magnetic design is necessary to yield the high THD performance and deviation from this could significantly reduce performance. Much of the circuitry is the same as described for the open loop solution. The main differences being a consequence of using the feedback circuitry. The input and feedback circuitry is shown separately in Figure 10 and is now described. The audio input is ac coupled and applied to an op-amp (1/2 of RC4558D) configured as a non-inverting amplifier with a gain of approximately 2.8. The op-amp input is tied to a DC level of approximately VCC/2. Feedback is applied differentially from the bridge outputs via the other half of the RC4558D op-amp. A portion of the single ended output from this op-amp is subtracted from the output of the non-inverting op-amp output above. Overall negative feedback is applied due to the polarity and connection of the signals involved. The audio signal from the above circuitry is applied to a phase splitter (see Figure 11) as was done for the open loop solution. This is built around the other LM3580 dual op-amp. One of these op-amps is configured as a voltage follower and the other as a X1 inverting amplifier. This produces in phase and inverted signals for application to the ZXCD1000 Audio A and Audio B inputs respectively. The output circuitry downstream of the ZXCD1000 is as described for the open loop solution, but the components may be slightly different (and have different numbering). Higher Power Solutions With some modifications the applications solutions can be extended to give 50W or even higher output powers. A 50W solution can be implemented with a circuit very similar to the 25W solution. The main differences being the supply voltage and the output magnetics. The magnetics for 50W are necessarily larger than required for 25W in order to handle the higher load currents. For 50W operation the supply voltage to the circuit is nominally 25V. However the maximum supply voltage to the ZXCD1000 class D controller IC is 20V, hence a voltage dropper is required. This could be done, for example, as in the open loop solution described previously. In addition, for the closed loop solution, slightly modified feedback resistor ratios are required. The ZXCD1000 class D controller IC is inherently capable of driving even higher power solutions, with the appropriate external circuitry. However as stated above the maximum supply voltage to the ZXCD1000 class D controller IC is 20V and the higher supply voltages must therefore be dropped. Also due consideration must be given to the ZXCD1000 output drive levels and the characteristics of the bridge MOSFET's. The latter must be sufficiently enhanced by the OutA and OutB outputs to ensure the filter and load network is driven properly. If the gate drive of the ZXCD1000 is too low for the chosen MOSFET then the OUTA and OUTB signal must be buffered using an appropriate MOSFET driver circuit. Additionally, suitable magnetics are essential to achieve good THD performance. Package details The ZXCD1000 is available in a 16 pin eQSOP package. The exposed pad on the underside of the package should be soldered down to an area of copper on the PCB, to function as a heatsink. The PCB should have plated through vias to the underside of the board, again connecting to an area of copper. ISSUE 1 -MARCH 2001 11 ZXCD1000 VCC R31 1.5k C21 Audio IN 3.3F R32 R20 10k 10k 1/2 RC4558D 3 2 1 R21 1.5k C18 47F R16 15k C20 47F R18 8.2k R24 R19 4.7k 220R R26 FROM BRIDGE O/P A (via R41/C41) FROM BRIDGE O/P B (via R40/C40) 10k 1/2 RC4558D 5 6 7 R29 2.7k R43 1k R25 10k C22 680pF R27 3.9k R28 1.6k To Phase Splitter Figure 10. Feedback and Input Circuitry. VCC R9 10k R10 10k 1/2 LM358D 3 2 1 R14 560R To AudioA input (In Phase Signal) C13 2.2nF R11 2.4k C12 10F R22 3.9k 1/2 LM358D 5 Audio Signal From Input / Feedback Circuitry R12 10k 7 R15 560R 6 R13 10k To AudioB input (Inverted Signal) C14 2.2nF R23 3.9k Figure 11. Phase Splitter ISSUE 1 - MARCH 2001 12 ZXCD1000 Typical performance graphs for the Zetex 25W open loop solution are shown here for both 4 and 8 loads. These graphs further demonstrate the true high fidelity performance achieved by the Zetex solutions. THD + N (%) 10W 1W 5W Output Power dB f(Hz) THD v Power into 8 at 1kHz FFT of distortion and noise floor at 1W (8 load) dB dB f(Hz) f(Hz) Frequency response (8 load) FFT of distortion and noise floor at 10W (8 load) ISSUE 1 -MARCH 2001 13 ZXCD1000 THD + N (%) 20W 1W 5W 10W Output Power dB f(Hz) THD v Power into 4 at 1kHz FFT of distortion and noise floor at 1W (4 load) dB f(Hz) dB f(Hz) Frequency response (4 load) Note roll off. This can be corrected by using an alternative values for output filter components. FFT of distortion and noise floor at 20W (4 load) ISSUE 1 - MARCH 2001 14 ZXCD1000 B.O.M. Table for 25W Mono Open Loop Solution PCB ID R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 R15 R16 C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12 C13 C14 C15 C16 C17 C18 C19 C20 C21 Value 100R 47K 56R 47K 56R 47K 56R 56R 47K 10K 2K7 2K7 2K7 2K7 2K7 2K7 2n2 COG 22F 10V 22F 6V3 47n X7R 47n X7R 270pF COG 22F 6V3 2n2 COG 2n2 COG 68F 6V3 100n X7R 100n X7R 100n X7R 22F 10V 22F 16V 100F 10V 100n 100n 100n 100n 100n X7R X7R X7R X7R X7R Case SMD 0805 SMD 0805 SMD 0805 SMD 0805 SMD 0805 SMD 0805 SMD 0805 SMD 0805 SMD 0805 SMD 0805 SMD 0805 SMD 0805 SMD 0805 SMD 0805 SMD 0805 SMD 0805 SMD 0805 SMD Tant B SMD Tant B SMD 0805 SMD 0805 SMD 0805 SMD Tant B SMD 0805 SMD 0805 SMD Tant B SMD 1206 SMD 0805 SMD 0805 SMD Tant B SMD Tant B std. Dia 6.3mm SMD 0805 SMD 0805 SMD 0805 SMD 0805 SMD 0805 Notes PCB ID C22 C23 C24 C25 C26 C27 C28 C29 C30 C31 C32 C33 C34 U1 U2 U3 Q1 Q2 Q3 Q4 D1 D2 D3 D4 Value 22F 6V3 470n 470n 470n 470n 470n 470n 2200F 16V 100n X7R 22F 16V 100F 16V 100n X7R 100F 16V ZXCD1000 NE5532 78L12 ZXM64P03X ZXM64N03X ZXM64P03X ZXM64N03X BAV70 BAW56 BAW56 BAV70 Case SMD Tant B SMD 1812 SMD 1812 SMD 1812 SMD 1812 SMD 1812 SMD 1812 std. Dia 12.5mm SMD 1206 SMD Tant B std. Dia 6.3mm SMD 1206 std. Dia 6.3mm SMD SO 8 TO92 SMD MSOP 8 SMD MSOP 8 SMD MSOP 8 SMD MSOP 8 SMD SOT23 SMD SOT23 SMD SOT23 SMD SOT23 Notes A4-Common Cathode A1-Common Anode A1-Common Anode A4-Common Cathode L1 L2 20H (ZXFN1000) 20H (ZXFN1000) std. std. Custom core Custom core ISSUE 1 -MARCH 2001 15 ZXCD1000 PACKAGE DIMENSIONS EXPOSED PAD C S h x 45 3 2 1 S Y M B O L H E SEE DETAIL "A" BOTTOM VIEW TOP VIEW END VIEW e b .010 A2 A SEATING PLANE L DIMENSIONS IN INCHES MIN. NOM. MAX. A .058 .061 .066 A1 .001 .003 .005 A2 .055 .058 .061 .012 b .008 .010 c .007 D .189 .194 .196 E .150 .154 .157 e .025 BSC H .228 .236 .244 h .010 .016 .013 .035 .025 L .016 .005 .007 S .002 O C 0 5 8 C O C D A1 SEATING PLANE SIDE VIEW Zetex part ordering information (per channel) Qty per Device channel 1 2 2 2 ZXCD1000EQ16 ZXFN1000 ZXM63N03X ZXM63P03X Description Class D modulator Custom magnetics N Channel MOSFET P Channel MOSFET MSOP8 MSOP8 Package T&R Suffix Zetex plc. Fields New Road, Chadderton, Oldham, OL9-8NP, United Kingdom. Telephone: (44)161 622 4422 (Sales), (44)161 622 4444 (General Enquiries) Fax: (44)161 622 4420 Zetex GmbH Streitfeldstrae 19 D-81673 Munchen Germany Telefon: (49) 89 45 49 49 0 Fax: (49) 89 45 49 49 49 Zetex Inc. 47 Mall Drive, Unit 4 Commack NY 11725 USA Telephone: (631) 543-7100 Fax: (631) 864-7630 Zetex (Asia) Ltd. 3701-04 Metroplaza, Tower 1 Hing Fong Road, Kwai Fong, Hong Kong Telephone:(852) 26100 611 Fax: (852) 24250 494 These are supported by agents and distributors in major countries world-wide (c) Zetex plc 2000 Internet:http://www.zetex.com This publication is issued to provide outline information only which (unless agreed by the Company in writing) may not be used, applied or reproduced for any purpose or form part of any order or contract or be regarded as a representation relating to the products or services concerned. The Company reserves the right to alter without notice the specification, design, price or conditions of supply of any product or service. C DETAIL "A" eQSOP16 TA, TC TA, TC TA, TC TA, TC ISSUE 1 - MARCH 2001 16 |
Price & Availability of ZXCD1000
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