T4078 TDK | Alldatasheet
Document overview
- Manufacturer or author: Provided By alldatasheet.com(free datasheet download site)
- PDF pages: 15
Technical content
Datasheet sections
- 1 General description
- 2 Marking
- 3 Mechanical specification
- 4 Electrical specification
- 4.1 ELECTRICAL CHARACTERISTICS
- 5 Absolute maximum ratings
- 6 Application example
- 7 Typical Performance Characteristics
- 8 Packing material
- 8.1 TAPE
- 8.2 REEL
- 8.3 BAG AND BOX
- 8.4 IDENTIFICATION LABEL (BPL) EXAMPLE
- 9 Assembly recommendations
- 9.1 RECOMMENDED LANDING AREA
- 9.2 RECOMMENDED SOLDER PASTE STENCIL LAYOUT
- 9.3 REFLOW PROFILE
- 9.4 CAUTIONS AND WARNINGS
- 10 Appendix
- 10.1 ORDERING CODES
- 10.2 ROHS COMPATIBILITY
- 11 Legal Disclaimer
TDK’S PRODUCT NAME MMICT4078-00-908 TDK Corporation Sales Engineering Electronic Components Sales & Marketing Group TDK ELECTRONICS AG TEG MEMS Sales Manager Sales Engineering Manager Superior Engineering Person in Charge A. Leidl H. Hayashi M. Winter Datasheet T4078 V6 DATE: 4-Sep-19
NAME DRAWING No. DATE REV. PAGE DATASHEET T4078 4-Sep-19 6 2 / 15 TDK CORPORATION TDK Technology – Proprietary and Confidential Information of TDK Group Companies Features: Surface Mounted Technology (SMT) Reflow soldering up to 260 °C RoHS compatible, Ni/Au-plated terminals suited for lead free soldering Size of 3.35 × 2.5 mm 2 Approximate weight of 19 mg Sound hole on bottom side Balanced operation High performance mode (HM) and low power mode (LM) Very high signal to noise ratio of 66 dB(A) Wide dynamic range Positive polarity Applications: Microphone designed for mobile phones, headsets, PDAs, noteboo ks and cameras Rev. Date Revised by Revision 1 17-Apr-18 A. Schober Initial issue 2 2-May-18 A. Schober Mechani cal specification updated 3 26-Sep-18 A. Schober TDK product name and ordering code changed, electrical and mechanical specification updated, recommended solder stencil layout updated 4 5-Feb-19 A. Schober Product marking updated 5 30-Jul-19 A. Schober Chapter 5 updated 6 04-Sep-19 A. Leidl Chapter 7 updated
NAME DRAWING No. DATE REV. PAGE DATASHEET T4078 4-Sep-19 6 4 / 15 TDK CORPORATION TDK Technology – Proprietary and Confidential Information of TDK Group Companies
1 General description
The T4078 is an analog, omnidirectional MEMS microphone with internal pre-amplifier. It has positive polarity and balanced output.
2 Marking
Character Area: 1st row: Pin 1 mark Blank T D K Type and Revision (see below table) Example: E 4 0 7 8 3rd row: Blank Production ID (4 digit) Example: 4 2 2 6 4th row: Production ID (5 digit) Example: A 0 G 5 9 Production status Product marking Example Engineering Sample “E” + Type E4078 MP release Type 4078 Product change (PCN) Type + PCN revision 40781
NAME DRAWING No. DATE REV. PAGE DATASHEET T4078 4-Sep-19 6 5 / 15 TDK CORPORATION TDK Technology – Proprietary and Confidential Information of TDK Group Companies
3 Mechanical specification
1 OUTP balanced output
2 GND ground
3,4 KOA keep out area, no st ructure on PCB recommended
5 V DD power
6 OUTN balanced output െ
Length 3.35 ±0.1 Width 2.5 ±0.1 Height 0.98 ±0.1 Note: All dimensions in mm unless otherwise stated
NAME DRAWING No. DATE REV. PAGE DATASHEET T4078 4-Sep-19 6 6 / 15 TDK CORPORATION TDK Technology – Proprietary and Confidential Information of TDK Group Companies
4 Electrical specification
4.1 Electrical characteristics
Ambient temperature of test conditions: T A = 25 ˚C Output load: Z L = 200 kΩ Supply voltage: V DD = 2.7V if not otherwise noted All voltages refer to ground. Min. Typ. Max. Unit Note or condition Supply voltage Vdd 2.3 2.7 3.0 V High performance mode (HM) 1.52 1.8 1.89 V Low power mode (LM) Sensitivity 1 kHz S 1 kHz -39 -38 -37 dBV/Pa HM, 94 dB SPL -39 -38 -37 dBV/Pa LM, 94 dB SPL Sensitivity settling time – – 30 ms Within +/- 0.5 dB of final sensitivity after power-on 2) Signal to noise ratio SNR – 66 – dB(A) HM, A-weighted – 64.5 – dB(A) LM, A-weighted Total harmonic THD – – 0.2 % HM, 94 dB SPL, 1 kHz distortion – – 0.2 % LM, 94 dB SPL, 1 kHz – 0.5 0.85 % HM, 121 dB SPL, 1 kHz – 0.5 1 % LM, 121 dB SPL, 1 kHz – 1 4 % HM, 130 dB SPL, 1 kHz Acoustic Overload Point AOP – 135 128 dB SPL dB SPL HM, 10% THD, 1kHz 2) LM, 10% THD, 1kHz 2) Power supply rejection ratio PSRR 1) 80 dB dB HM; 1 kHz sine wave; 200 mVpp LM; 1 kHz sine wave; 200 mVpp Current consumption ICC – – 250 µA HM – – 85 µA LM Output impedance − 250 − Ω HM, OUTP/OUTN to GND, 1kHz − 300 − Ω LM, OUTP/OUTN to GND, 1kHz 1) PSRR=20 ∙ log VDisturb VOUT , 2) verified by design
NAME DRAWING No. DATE REV. PAGE DATASHEET T4078 4-Sep-19 6 7 / 15 TDK CORPORATION TDK Technology – Proprietary and Confidential Information of TDK Group Companies
5 Absolute maximum ratings
Min. Max. Unit Note or condition Operable temperature range T -40 +105 °C Storage temperature range T STG -40 +125 °C T STGT 0 +60 °C stored in tape Operable Power supply voltage V DD 1.52 3.60 V ESD capability MM V ESD_MM – 200 1) V A n y p i n ESD capability HBM V ESD_HBM – 2000 2) V A n y p i n Mechanical Shock – 10,000 g 1) According to JESD22-A115A. 2) According to JESD22-A114E. Stress above those listed as Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these conditions is not implied. Exposure to the absolute maximum ratings conditions for extended periods may affect device reliability.
6 Application example
CLN, CLP, CL: Optional EMI capacitors; maximum value 150pF. RL: Output load impedance; minimum value 25 kΩ
NAME DRAWING No. DATE REV. PAGE DATASHEET T4078 4-Sep-19 6 8 / 15 TDK CORPORATION TDK Technology – Proprietary and Confidential Information of TDK Group Companies
7 Typical Performance Characteristics
Typical Frequency Response (Measured) THD + N vs. Input Amplitude Power-Supply Rejection Ratio vs. Frequency Linearity
NAME DRAWING No. DATE REV. PAGE DATASHEET T4078 4-Sep-19 6 9 / 15 TDK CORPORATION TDK Technology – Proprietary and Confidential Information of TDK Group Companies
8 Packing material
8.1 Tape
A0 2 . 7 0±0.05 mm K 0 1 . 2 0±0.1 mm B0 3 . 5 5±0.05 mm P 1 4 . 0 0±0.1 mm E2 min 6.25 mm W Ø8.00-0.10 +0.30mm F 3.50 ±0.05 mm G min 0.75 mm Notes: (I) Measured from centerline of sprocket hole to centerline of pocket. (II) Cumulative tolerance of 10 sprocket holes is ± 0.20. (III) Measured from centerline of sprocket hole to centerline of pocket. Orientation of devices in tape:
NAME DRAWING No. DATE REV. PAGE DATASHEET T4078 4-Sep-19 6 10 / 15 TDK CORPORATION TDK Technology – Proprietary and Confidential Information of TDK Group Companies
8.2 Reel
8.2.1 330mm Reel Note: All dimensions in mm unless otherwise stated
NAME DRAWING No. DATE REV. PAGE DATASHEET T4078 4-Sep-19 6 11 / 15 TDK CORPORATION TDK Technology – Proprietary and Confidential Information of TDK Group Companies
8.3 Bag and Box
Reel Size Width B Length L Height H 330 mm 338 mm 335 mm 36 mm
NAME DRAWING No. DATE REV. PAGE DATASHEET T4078 4-Sep-19 6 12 / 15 TDK CORPORATION TDK Technology – Proprietary and Confidential Information of TDK Group Companies
8.4 Identification Label (BPL) Example
9 Assembly recommendations
9.1 Recommended landing area
9.2 Recommended solder paste stencil layout
Note: All dimensions in mm unless otherwise stated
NAME DRAWING No. DATE REV. PAGE DATASHEET T4078 4-Sep-19 6 13 / 15 TDK CORPORATION TDK Technology – Proprietary and Confidential Information of TDK Group Companies
9.3 Reflow profile
Ramp rate ≤ 3 K/s Preheat 125°C to 220°C, 150 s to 210 s, 0.4 K/s to 1.0 K/s T > 220°C 30 s to 70 s T > 230°C Min. 10 s T > 245°C Max. 20 s T ≥ 255°C − Peak temperature Tpeak 250°C +0/-5°C Wetting temperature Tmin 230°C +5/-0°C for 10 s ± 1 s Cooling rate ≤ 3 K/s Soldering temperature T Measured at solder pads
9.4 Cautions and warnings
Vacuum on the bottom side of a device with a sound inlet hole has to be avoided Compressed air and liquid cleaners should not be used around the area of the sound inlet hole The sound inlet hole must not be covered with solder The maximum number of reflows should not exceed three 120 160 200 240 280 0 60 120 180 240 300 360 420 time (sec) temperature (°C) max. recomm. temp reflow soldering min. temp for wetting
NAME DRAWING No. DATE REV. PAGE DATASHEET T4078 4-Sep-19 6 14 / 15 TDK CORPORATION TDK Technology – Proprietary and Confidential Information of TDK Group Companies
10 Appendix
10.1 Ordering codes
Ordering code Packing units Reel size MMICT4078-00-908 9000 pcs 330 mm
10.2 RoHS compatibility
ROHS-compatible means that products are compatible with the requirements according to Art. 4 (substance restrictions) of Directive 2011/65/EU of the European Parliament and of the Council of June 8th, 2011, on the restriction of the use of certain hazardous substances in electrical and electronic equipment ("Directive") with due regard to the application of exemptions as per Annex III of the Directive in certain cases.
NAME DRAWING No. DATE REV. PAGE DATASHEET T4078 4-Sep-19 6 15 / 15 TDK CORPORATION TDK Technology – Proprietary and Confidential Information of TDK Group Companies
11 Legal Disclaimer
The products listed on this specification sheet are intended for use in general electronic equipment (AV equipment, telecommunications equipment, home appliances, amusement equipment, computer equipment, personal equipment, office equipment, measurement equipment, industrial robots) under a normal operation and use condition. The products are not designed or warranted to meet the requirements of the applications listed below, whose performance and/or quality require a more stringent level of safety or reliability, or whose failure, malfunction or trouble could cause serious damage to society, person or property. Please understand that we are not responsible for any damage or liability caused by use of the products in any of the applications below or for any other use exceeding the range or conditions set forth in this specification sheet. Aerospace/Aviation equipment Transportation equipment (cars, electric trains, ships, etc.) Medical equipment Power-generation control equipment Atomic energy-related equipment Seabed equipment Transportation control equipment Public information-processing equipment Military equipment Electric heating apparatus, burning equipment Disaster prevention/crime prevention equipment Safety equipment Other applications that are not considered general-purpose applications When using this product in general-purpose applications, you are kindly requested to take into consideration securing protection circuit/equipment or providing backup circuits, etc., to ensure higher safety.