BU8761KV Communication ICs CODEC IC for digital mobile phone BU8761KV BU8761KV is a PCM CODEC IC developed for digital mobile phones. This IC incorporates many analog I/O functions such as 14bit precision linear µ / A-LAW codec, two systems of microphone, amplifiers for receiver and earphone, and data signal I/O circuit. Tone generator that can output maximum 3 chord is incorporated. zApplications Digital mobile phones zExternal dimensions (Units：mm) 9.0±0.3 7.0±0.2 37 25 24 48 13 1 0.5 12 0.5 7.0±0.2 9.0±0.3 36 1.425±0.1 0.10 zFeatures 1) +3V single power supply. (VDD=2.7 to 3.3V) 2) 14bit precision linear µ / A-LAW codec. 3) Transmission filter of the codec block is in conformity to the ITU-T recommendation G.714. 4) Built-in PLL circuit for system clock generation. 5) Built-in DSP I/F which is in conformity with digital mobile phones. 6) Arbitary setting of the clock frequency of PCM data transmission is allowed. µ / A-LAW 64kHz to 2048kHz Linear 28kHz to 2048kHz 7) Plenty of input / output analog functions : • Two systems of built-in microphone amplifier. (differential input type, single input type) • Built-in speaker amplifier for receiver. (32ΩBTL type) • Built-in speaker amplifier for earphone. (32Ω single type) • Built-in speaker amplifier for REXT of call receiving system. (600Ω) • Built-in electronic volumes for gain adjustment. (Call-receiving system, call sending system, TONE system) • Built-in input / output circuit for data signal which allows external connection. • Pop noise of REXT earphone and receiver outputs at the time of switching on and off the power supply is reduced by means of soft mute. 8) Tone generator building in that maximum 3 chord output is possible. • DTMF signal, musical scale tone can be generate. • Envelope on/ off the output wave shape can be set up in each part. • SIN wave, rectangle wave can be chosen in the output wave shape. 9) VQFP48 pin package. 0.125±0.1 0.2±0.1 0.10 VQFP48 1/3 BU8761KV Communication ICs zAbsolute maximum rating (Unless otherwise noted, Ta = 25°C) Parameter Symbol Limits Unit DVDD −0.3 to +4.5 V RXVDD −0.3 to +4.5 V Digital power supply voltage Analog power supply voltage TXVDD −0.3 to +4.5 V Digital pin apply voltage VTD DVSS−0.3 to DVDD+0.3 V Analog pin apply voltage VTA RXVSS−0.3 to RXVDD+0.3 V TXVSS−0.3 to TXVDD+0.3 V Input current IIN Power dissipation Pd Storage temperature range −10 to +10 mA 400 ∗ mW Tstg −50 to +125 °C Ta −30 to +85 °C Operation temperature range ∗ Drops by 4.0mW per 1°C when used at more than Ta=25°C. zRecommendable operation condition (Unless otherwise noted, Ta = 25°C) Parameter Symbol Min. Typ. Max. Unit DVDD 2.7 − 3.3 V RXVDD 2.7 − 3.3 V TXVDD 2.7 − 3.3 V Digital power supply voltege Analog power supply voltege ∗ Radiation resistance is not included design. zElectrical characteristics (Unless otherwise noted, Ta = 25°C, DVDD = RXVDD = TXVDD = 3.0V, FSYNC = 8kHz, DCLK = 256kHz, Gain of each attenuator = 0dB) Parameter Symbol Min. Typ. Max. IDD1 − 8.0 11.5 When all operating IDD2 − 7.0 10.2 Reference, Voice, SPC ON IDD3 − 6.0 8.6 Reference, Voice, EAR ON IDD4 − 5.4 7.8 IDD5 − 5.1 7.3 Reference, Voice, ON IDD6 − 3.7 5.3 Reference, Tone, ON IDD7 − 3.3 4.8 Only Reference ON IDD8 − 0.1 20 µA Digital "H" level input voltage VIH 0.8DVDD − − V Digital "L" level input voltage VIL − − 0.2DVDD V VIH=DVDD Current consumption∗1 Unit mA Conditions Reference, Voice, RAMP ON Digital "H" level input current IIH − − 10 Digital "L" level input current IIL −10 − − µA VIL=0V IOH=−1mA IOL=1mA Digital "H" level output voltage VOH DVDD−0.5 − − Digital "L" level output voltage VOL − − 0.5 V ∗2 ∗2 ∗2 ∗2 ∗2 ∗2 When all power down, FSYNC, DCLK pin fixed µA V ∗2 ∗1 Supply voltage (DVDD, RXVDD, TXVDD) : 3V. No load for digital and analog output pin. Digital input pin except FSYNC. CLK pin should be connected to DVDD or DVss. Analog input pin should be connected to TXREF or RXREF with appropriate resistance. Soft mute release voltage (SMUTE="0") ∗2 FSYNC=8kHz, DCLK=256kHz 2/3 BU8761KV Communication ICs zApplication circuit TEXT 27 MIC2IN 28 MIC2O 29 TAUDO TXVDD 30 R7 TEXTADD 31 + 0.01µ 32 TEXTDI 33 C10 R8 TEXTDO 34 PLLLPF 35 FSYNC STB SCL SDA 36 Frame Sync 8kHz + C11 for CPU 26 25 SW8 MIC1O 24 PLL XPRSTB + MIC Amp2 38 SW0 39 Amp1 + − 22 + 3 MIC Amp TONE D/A TXVSS 21 EV3 DSP I / F 41 BPF A/D TXREF + EV0 AAF 20 1µ PCMIN EV1 19 VREF / COMMON 43 2.2µ CODECREF + EV4 18 1µ CPUSEL SW4 5 6 − ERMT 1µ SMUTE + 16 JAmp − + EV5 RAmp Amp5 SW9B − − + Amp4 + + EV2 SW9A 48 + NC − + + R2 9 SPPO 8 SPPN 7 ERPO 6 ERPN 5 AUDVR + 4 AUDO 3 RIN EXTO REXTDO REXTDI 2 RXVSS 10 11 C5 R1 Power on by VCPON C1 C2 C7 13 12 R4 REXT Power on by REFPON EARPHONE(32Ω) EAmp2 SPOUT 1 EARO 14 SPCON − 47 15 EAmp1 + Amp3 + SPMT EV6 − Amp7 0.22µ RXVDD + + 46 TSTOUT EXTSEL TSTIN + 17 + 45 Fixed "L" 7 ERP0 SPP0 SW14 15 TSTMOD RXREF + SOFTMUTE 44 SPCOP Fixed "L" + D/A + LPF EV7 42 REFC DCLK Fixed "L" + PCMOUT DSP R5 2 40 C8 MIC1IP 1 DVSS C9 23 − 3-TONE DTMF GEN DVDD R6 MIC1IN + CPU I / F + SW12 37 − Reset R3 C3 C6 C4 SPEAKER (32Ω) Power on by TGPON Power on by VCPON or TGPON Power on by SPON Power on by RXPON Power on by EARON 3/3 Appendix Notes No technical content pages of this document may be reproduced in any form or transmitted by any means without prior permission of ROHM CO.,LTD. The contents described herein are subject to change without notice. The specifications for the product described in this document are for reference only. Upon actual use, therefore, please request that specifications to be separately delivered. Application circuit diagrams and circuit constants contained herein are shown as examples of standard use and operation. Please pay careful attention to the peripheral conditions when designing circuits and deciding upon circuit constants in the set. Any data, including, but not limited to application circuit diagrams information, described herein are intended only as illustrations of such devices and not as the specifications for such devices. ROHM CO.,LTD. disclaims any warranty that any use of such devices shall be free from infringement of any third party's intellectual property rights or other proprietary rights, and further, assumes no liability of whatsoever nature in the event of any such infringement, or arising from or connected with or related to the use of such devices. Upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or otherwise dispose of the same, no express or implied right or license to practice or commercially exploit any intellectual property rights or other proprietary rights owned or controlled by ROHM CO., LTD. is granted to any such buyer. Products listed in this document use silicon as a basic material. Products listed in this document are no antiradiation design. The products listed in this document are designed to be used with ordinary electronic equipment or devices (such as audio visual equipment, office-automation equipment, communications devices, electrical appliances and electronic toys). Should you intend to use these products with equipment or devices which require an extremely high level of reliability and the malfunction of with would directly endanger human life (such as medical instruments, transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other safety devices), please be sure to consult with our sales representative in advance. About Export Control Order in Japan Products described herein are the objects of controlled goods in Annex 1 (Item 16) of Export Trade Control Order in Japan. In case of export from Japan, please confirm if it applies to "objective" criteria or an "informed" (by MITI clause) on the basis of "catch all controls for Non-Proliferation of Weapons of Mass Destruction. Appendix1-Rev1.0