| Term | Terminal Name | Function |
| 1 | LOGIC SUPPLY | Vcc; logic supply voltage. |
| 2 | IN HIBIT | An active-high logic input that inhibits the output stages without initiating a park. |
| 34 | UVi and UV2 | Under-voltage detection inputs. If not used, these terminals must be connected to the logic supply (Vcc). |
| 5 | LIMIT | A tri-state input that forces the output of amplifier A into saturation in either direction, or allows normal linear operation. |
| 67 | GROUNDAB | Power amplifiers' ground and thermal heat sink. |
| 8 | PARK VOLTAGE | Auxiliary inverting input to power amplifier A. |
| 9 | SENSEIN_ | Inverting input to current sense error amplifer. |
| 10 | INA+ | Non-inverting input to power amplifier A. |
| 11 | INA_ | Inverting input to power amplifier A. |
| 12 | OUTA | Power amplifier A output to voice coil motor. |
| 13 | OUTB | Power amplifier B output to voice coil motor. |
| 14 | LOAD SUPPLY | VBB; load supply voltage. |
| 15 | INB_ | Inverting input to power amplifier B. |
| 16 | INB+ | Non-inverting input to power amplifier B. |
| 17 | SENSEIN+ | Non-inverting input to current sense error amplifer. |
| 1819 | GROUNDAB | Power amplifiers' ground and thermal heat sink. |
| 20 | PWR OK | A logic low at this output indicates an under-voltage condition. |
| 21 | GROUND | Circuit reference. |
| 22 | PARK | An active-high logic input that activates the park function. |
| 23 | PARK DRIVE | Power transistor for retract current control on power down or park command. |
| 24 | SENSEOUT | Output of current sense error amplifier. |
| | |
Capacitors of different materials lose their capacitance with higher temperature and voltage at different rates. For example, a ceramic capacitor made of X7R material will retain most ofits capacitance from -40'fC t0 85'fC whereas a 25U or Y5V style capacitor willlose considerable capaci- tance over that range. 25U and Y5V capacitors may also have a very poor voltage coefficient causing them to lose 60% or more of their capacitance when the rated voltage is applied. Therefore, when comparing different capaci- tors it is often more appropriate to compare the amount of achievable capacitance for a given case size rather than comparing the specified capacitance value. For example, over rated voltage and temperature conditions,alaF,lOV, Y5V ceramic capacitorin a 0603 case may not provide any more capacitance than a 0.22aF,lOV, X7R available in the same 0603 case. The capacitor manufacturer's data sheet should be consulted to determine what value of capacitor is needed to ensure minimum capacitances at alltempe ra- tures and voltages.
| PLO:13dBm |
| VpLU : iUaLirll |
| r~0j |
| - / ~----Jt -... PLO : 7dBm |
| |
| |
