PAMS Technical Documentation HFU–2 Handsfree Unit Original 11/97
PAMS HFU–2 Handsfree Unit Technical Documentation CONTENTS Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Technical Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . List of Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Supply Voltage and Power Consumption . . . . . . . . . . . . . . . .
PAMS Technical Documentation HFU–2 Handsfree Unit Introduction The HFU–2 is a handsfree unit for DCT3 compatible handportable phones. It provides rapid charging for the phone, a possibility to use HF– operation and connections to the data–card and handset unit. The HF box can be connected directly to the Mobile holder MCC–1 via the external cable.
PAMS HFU–2 Handsfree Unit Technical Documentation List of Modules Name of module Type code HF unit HFU–2 HF module ED2 Assembly parts MHFU–2 Material code Notes 0694049 Advanced handsfree unit 0200948 ED2 Advanced hadsfree module 0261602 Mechanical Parts Operation Phone not connected (sleep mode): When the phone is not connected the current consumption of the device has been minimized. The switching mode power supply (SMPS) and audio circuits has been turned off.
PAMS Technical Documentation HFU–2 Handsfree Unit Charging voltage limits within current specifications fulfilled Conn. / pin Line Symbol Minimum Typical / Nominal Maximum X200 / 7 GND 0 0 0.1 VDC X200 / 2 +10VA 9.50 10.0 10.55 VDC X200 / 2 +10VA 11 200 Conn. / pin Unit / Notes IDC / mA Line Symbol Minimum Typical / Nominal Maximum Unit / Notes X100 / 5,6,11 GND 0 0 0.1 VDC X100 / 8,9 V_IN 3 8.
PAMS HFU–2 Handsfree Unit Technical Documentation HFS–12 Audio Specifications, acoustic Minimum Typical / Nominal Maximum Unit / Notes 11 15 19 dBPa / 1V at system connector is theoretical level Electroacoustic transfer function (RX) dBPa/1V/0.5m Speaker distortion level at XEAR–SGND, d=5% 354 HF–speaker: SPL, approximate over 500 ... 3000 Hz 87 –4 mVrms 89 –2 91 0 dB / 1W / 1m dBPa / 0.
PAMS Technical Documentation HFU–2 Handsfree Unit Block Diagram VCC CRM EXTERNAL I/O protec– tion AMC IGNS CHARGE SMPS DC connector X300 VCC CRM IGNS AMC CHGON V_IN RESET CHRG_CTRL CONTROL CIRCUITS MBUS POWER SUPPLY PWRON MUTE System protec– connector X100 tion FBUS AUDIO AUDIO INTERFACE AUDIO MUTE EAR HS / Data con– protec– nector X200 tion PASSIVE MIC POWER AMPLIFIER EAR Original 11/97 MICROPHONE AMPLIFIER MUTE LOGIC protec– tion External Microphone Connector X200 protec– ti
PAMS HFU–2 Handsfree Unit Technical Documentation Exploded View of HFU–2 5 4 3 2 1 Page 8 Original 11/97
PAMS Technical Documentation HFU–2 Handsfree Unit Parts list of ED2 (EDMS Issue 5.
PAMS HFU–2 Handsfree Unit R317 R319 R321 R323 R324 R325 R327 R328 R331 R332 R333 R334 R335 R336 R337 R350 R351 R352 R353 R380 R400 R402 R403 R404 R405 R406 R407 R408 R409 R410 R411 R412 R415 R416 R417 R421 R422 R423 R425 R426 R427 R429 R430 R431 R432 R433 R434 Page 10 1430087 1430079 1430071 1414536 1410003 1430035 1414536 1410003 1430065 1430055 1430055 1414536 1410003 1430095 1430095 1430035 1430065 1430047 1430065 1430095 1430043 1430073 1415939 1430095 1430167 1430047 1430035 1415939 1430043 1430043
PAMS Technical Documentation R435 R436 R437 R438 R439 R440 R441 R442 R443 R444 R446 R447 R449 R465 R466 R467 R468 R469 R471 R472 R473 C201 C202 C203 C205 C206 C207 C208 C209 C210 C211 C212 C213 C214 C218 C219 C220 C221 C301 C304 C306 C308 C309 C316 C318 C321 C322 1430095 1430159 1414276 1430043 1415230 1416266 1415939 1415939 1430071 1430167 1430039 1430071 1430043 1415939 1430055 1430001 1430001 1430001 1430053 1430053 1430053 2503072 2320091 2320063 2320083 2505261 2320083 2604209 2503072 2503072 260409
PAMS HFU–2 Handsfree Unit C323 C326 C329 C334 C335 C338 C339 C340 C400 C402 C403 C404 C405 C406 C407 C408 C409 C410 C412 C413 C414 C415 C416 C417 C418 C419 C420 C421 C422 C423 C425 C427 C428 C429 C430 C431 C432 C433 C434 C435 C436 C437 C438 C439 C440 C441 C442 Page 12 2320091 2320107 2320091 2320091 2505261 2320063 2320043 2320107 2320069 2320079 2320063 2320043 2320091 2320091 2320083 2320063 2320063 2320043 2604209 2320091 2320107 2604209 2320063 2320107 2310784 2310784 2320083 2604209 2320083 2320107
PAMS Technical Documentation C443 C444 C445 C446 C447 C449 C450 C453 C454 C455 C456 C457 C458 C460 C465 C466 C467 C470 C490 L200 2320091 2320043 2320063 2320083 2320091 2320063 2320091 2320063 2320091 2320043 2604431 2604209 2310784 2310784 2320083 2604209 2604209 2310784 2320043 3609001 L201 3609001 Coil L301 L302 L303 L304 L400 L401 Z300 Z400 Z401 Z402 V200 V201 V202 V203 V204 V205 V207 V208 V300 V301 V302 V304 V306 V307 3641262 3641262 3641262 3641262 3641262 3641262 4507733 3640035 3640035 3640035
PAMS HFU–2 Handsfree Unit V309 V310 V311 V312 V313 V314 V315 V318 D300 D400 N200 N201 N202 N204 N400 N401 N402 S001 X100 X200 X300 X400 X500 Page 14 4100285 4100285 4210096 4100285 4210020 4200917 4100218 4108639 4370315 4309431 4340127 4305733 4340067 4340067 4301182 4340125 4301199 9510365 5400087 540Y031 540Y021 5409057 5409059 9854195 9854195 Technical Documentation Diode x 2 BAV99 Diode x 2 BAV99 Transistor BCP54 Diode x 2 BAV99 Transistor BCP69–25 Transistor BC848B/BCW32 Trans. supr.
