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CC85XXDK-HEADSET-RD: Need part numbers / specifications to build the demo design

David Tiefenbrunn
Intellectual 785 points
Part Number: CC85XXDK-HEADSET-RD
Other Parts Discussed in Thread: BQ25015, CC2420, CC2590, CC8531, TLV320AIC3204

I am trying to build this demo design.  This has been a nightmare.  Can't buy a demo kit.  The PCB design files have something wrong in them, and I have not been able to get a corrected version, so I have to design them myself.  Ok, we have to eventually anyway.  Now I am trying to gather the information to develop a BOM.  Some of the parts are lacking key values, and I can't get help from tech support, because they don't know?!?!?!   Today, in gathering the info / links to try to make this post, I stumble across the demo kit on digi key - it's listed as obsolete and not available.  Should I even be trying to start a new design with these parts?

Anyway, here is the list of parts I do not have complete specifications for-

L1 - The inductance is specified, which is something, but nowhere near enough. It's 10uH, but how much current before saturation? What ESR is ok? What frequency?  L1 is connected to the BQ25015 in the demo design.

L111, L112, L113, L2, L5-18 Same problem. Missing specifications- frequency test, self resonant frequency, Q & frequency, DC resistance, current rating.
R23, R241  - how many ohms? It just says general with no value.
According to

www.ti.com/.../swru281.pdf

https://www.ti.com/lit/ml/swru282/swru282.pdf



I was also refferred to this reference design, but again, I cannot find the BOM anywhere.

CC2541-CC2590EM Reference Design https://www.ti.com/lit/zip/swrr116

Can anyone help me find this missing information?

Dave

  • 0
    TI__Mastermind 37805 points

    Hi Dave,

    I believe the part names for the inductors you're referring to (L111, L112, L113, L2, L5-18) are listed in the partlist.xls file in the reference design, which can be found here. Their inductance values are listed online.

    The two resistors (R23 and R241) are do-not-mount, so no resistance value is needed.

    As for the L1 inductance value, why is 10 uH is too little? On the BQ datasheet it is listed as 10 uH in a typical application.

  • 0 in reply to Nathan Block
    Intellectual 785 points

    I did have that zip file.  I did not see the xls file, but here is a line from it -

    L111 L_2N2_0402_B_LQW 1 Err:508

    This does not contain anything but possibly the inductance rating - 2.2nH, and the case size, 0402.

    None  of the other parameters that define an inductor are listed.  ESR, max current, Q, etc.

    I did find a current rating for the inductor in the BQ data sheet.  At least that narrows it down for that one a lot.

    My experience with inductors is mostly in switch mode power supplies, where all of these parameters matter.  RF is not something I have done a lot with.  Some of the inductors in the first list are in the RF signal path.  I need to know I am picking the correct type of parts.  There are enough unknown variables having to re create the PCBs as it is.

    Thank you,

    Dave

  • 0 in reply to David Tiefenbrunn
    TI__Mastermind 37805 points

    Hmmm interesting. I wonder if it's a computer issue. Here is what I see when I open the xls file on my computer. I think the part number column should have what you're looking for.

    Ref. Part name Pcs/unit Description Manufacturer Part number Supplier Ordering code
    D1 1N4148WS 1 Small signal diode SOD323 Fairchild 1N4148WS
    A1 ANTENNA_IIFA_CC2420 1 #N/A #N/A #N/A #N/A #N/A
    U9 BQ25015 1 Dual Input Charger with Integrated Synchronous Buck Converter, Output Adjustable TI BQ25015RHLR or -T TI
    U2 CC2590 1 LNA and PA 10 dBm TI CC2590 TI CC2590
    U1 CC8531 1 CC8531 Pure Path Wireless Audio Transceiver 3 channels with USB TI CC8531 TI CC8531
    C37-38;C102 C_0402 3 Capacitor, general, 0402; Do not mount
    C101;C121;C181;C201;C231;C281;C311;C371 C_100N_0402_X5R_K_10 8 Capacitor, 100n, 0402, X5R, 10%, 10V Murata GRM155R71A104KA01D
    C6;C14-15;C23;C30 C_10U_0603_X5R_M_4 5 Capacitor, 10u, 0603, X5R, 20%, 4V Murata GRM188R60G106ME47D
    C131 C_18P_0402_NP0_J_50 1 Capacitor, 18p, 0402, NP0, 5% 25V Murata GRM1555C1H180JZ01D ELFA 65-881-23
    C103;C132;C161 C_1N_0402_NP0_J_50 3 Capacitor, 1n, 0402, NP0, 5%, 50V Murata GRM1555C1H102JA01D
    C111 C_1P2_0402_NP0_C_50 1 Capacitor, 1p2, 0402, NP0, +/-0.25pF 50V Murata GRM1555C1H1R2CZ01D
    C113 C_1P8_0402_NP0_C_50 1 Capacitor, 1p8, 0402, NP0, +/-0.25pF 50V Murata GRM1555C1H1R8CZ01D
    C3-4;C40;C391;C401 C_1U_0402_X5R_K_6P3 5 Capacitor, 1u, 0402, X5R, 10%, 6.3V Murata GRM155R60J105KE19D
    C36;C271 C_220P_0402_NP0_J_50 2 Capacitor, 220p, 0402, NP0, 5%, 50V Murata GRM1555C1H221JA01D
    C5;C24-25 C_2U2_0402_X5R_M_6P3VDC 3 Capacitor, 2u2, 0402, X5R, +/-20%, 6.3V Murata GRM155R60J225ME TTI
    C34 C_2U2_0603_X5R_K_10 1 Capacitor, 2u2, 0603, X5R, 10%, 10V Murata GRM188R61A225KE34D
    C35;C211;C221 C_33P_0402_NP0_J_50 3 Capacitor, 33p, 0402, NP0, 5%, 50V Murata GRM1555C1H330JZ01D
    C11;C22 C_47P_0402_NP0_J_50 2 Capacitor, 47p, 0402, NP0, 5%, 50V Murata GRM1555C1H470JZ01D
    C1-2 C_47U_1206_X5R_M_6P3 2 Capacitor, 47u, 1206, X5R, 20%, 6.3V Murata GRM31CR60J476ME19L
    C112 C_6P8_0402_NP0_C_50 1 Capacitor, 6p8, 0402, NP0, +-0.25pF 50V Murata GRM1555C1H6R8CZ01D ELFA 65-881-23
    D2-3 LED_EL19-21SRC 2 LED, red, 0603, 1.7V, 19mcd Everlight 19-21SDRC/S530-A3/TR8  ELFA 75-308-01
    L1 L_10U_1210_K 1 Inductor, 10u, 1210, +-10uH BI Technologies BCL322522-100KLF ELFA 58-817-68
    L112 L_1N5_0402_S 1 Inductor, 1n5, 0402, Monolithic type, +/-0.3 nH Murata LQG15HS1N5S02D
    L111 L_2N2_0402_B_LQW 1 Inductor, 2n2, 0402, +/-0.1nH, wire-wound type Murata LQW15AN2N2B00 ACTE
    L113 L_3N9_0402_C_LQW 1 Inductor, 3n9, 0402, +/-0.2nH, wire-wound type Murata LQW15AN3N9C00 ACTE
    L2;L5-18 L_6N8_0402_J 15 Inductor, 6n8, 0402, Monolithic type, ±5% Murata LQG15HS6N8J02D
    L3-4 L_BEAD_102_0402 2 EMI filter bead, 0402 1k ohms Tape GHz Band Gen Use Murata BLM15HG102SN1D ACTE
    J25 MOLEX532610371 3PIN 1 Molex 532610371 3pin connector for Lithium battery Molex 53261-0371
    B1 PB-PLJG2 1 Push button with rocker DIPTRONICS PLJG2-G-V Freber
    R23;R241 R_0402 2 Resistor, general, 0402; Do not mount
    R20;R28-29;R32-33 R_0_0402 5 Resistor, 0 ohm, 0402 Koa RK73Z1ETTP ELFA 60-470-05
    R12;R14;R25 R_0_0402_3PORT_1-2 3 Resistor 3 ports, 0 ohm, 0402, mounted between pad 1 and pad 2 Koa RK73Z1ETTP ELFA 60-470-05
    R17 R_0_0402_3PORT_2-3 1 Resistor 3 ports, 0 ohm, 0402, mounted between pad 2 and pad 3 Koa RK73Z1ETTP ELFA 60-470-05
    R16 R_100K_0402_F 1 Resistor, 100k ohms, 0402, ±1%  Koa RK73H1ETTP1003F ELFA 60-490-19
    R6;R27;R35-37 R_10K_0402_F 5 Resistor, 10k ohms, 0402, ±1%  Koa RK73H1ETTP1002F ELFA 60-485-32
    R5 R_1K5_0402_G 1 Resistor, 1k5 ohms, 0402, 2% Koa RK73H1ETTP1501F (±1%) ELFA 60-481-36
    R10;R99 R_270_0402_F 2 Resistor, 270 ohms, 0402,  ±1%  Koa RK73H1E270RF-MR or RK73H1ETTP2700F ELFA 60-885-61 or 60-477-73
    R1-4;R13 R_2K2_0402_G 5 Resistor, 2k2 ohms, 0402, 2% Koa RK73H1ETTP2201F  (±1%) ELFA 60-482-19
    R15 R_330K_0402_F 1 Resistor, 330k ohms, 0402,  ±1%  Koa RK73H1ETTP3303F ELFA 60-492-58
    R11;R21 R_33_0402_G 2 Resistor, 33 ohms, 0402, 2% Koa RK73H1ETTP33R0F (±1%) ELFA 60-473-36
    R291 R_47K_0402_F 1 Resistor, 47k ohms, 0402,  ±1%  Koa RK73H1ETTP4702F  ELFA 60-488-54
    R151 R_4K3_0402_G 1 Resistor, 4k3 ohms, 0402, 2% Koa RK73H1ETTP4301F ELFA 60-483-59
    R301 R_56K_0402_F 1 Resistor, 56k ohms, 0402,  ±1%  Koa RK73H1ETTP5602F ELFA 60-488-96
    U4 SN74AHC1G32DC 1 Single 2-input OR gate TI SN74AHC1G32DC TI
    J1-2 SJ-3524-SMT 2 Stereo Mini-jack with 3.5mm Low Profile with detect pin CUI Inc. SJ-3524-SMT Digikey CP-3524SJDKR-ND
    P1 STL21 1 10 pins connector MPE-Garry GmbH STL21-A01XX-010-TRU Freber
    P7 STL21_NOT_MOUNTED 1 10 pins connector NOT MOUNTED MPE-Garry GmbH STL21-A01XX-010-TRU Freber
    U3 TLV320AIC3204 1 Low Power Stereo Audio Codec for Portable use TI TLV320AIC3204IRHBR or -T TI
    P4 USB-B_MICRO 1 Micro USB receptacle, standard type B, SMD Tyco 1981568-1 Digikey A97800CT-ND
    X1 X_48.000/15/18/60/16 1 Crystal, 48.000000MHz, FA-128, 16.0pF, +/-15ppm (FT), +/-18ppm (FS), 60 ohms max.  Epson Toyocom FA-128 48.000000MHz, Q22FA12800044 ACTE Q22FA12800044