ROHM BH4128FV-E2

Communication ICs Second Mixer IF for digital cellular phones BH4128FV The BH4128FV is an IC equipped with internal second mixer and IF amplifier circuits, developed for use with digital cellu- lar phones.
Applications Digital cellular phones
Features 1) Equipped with internal mixer, IF, and RSSI circuits. 3) IF amplifier gain is 100 dB. 2) Can be operated at mixer input frequencies ranging 4) Equipped with a battery power saving function. from 10MHz to 200MHz.
Absolute maximum ratings (Ta = 25 C, for measurement circuit)
Recommended operating conditions (Ta = 25 C, for measurement circuit) 83 Communication ICs BH4128FV �Block diagram 84 Communication ICs BH4128FV �Pin descriptions 85 Communication ICs BH4128FV 86 Communication ICs BH4128FV 87 Communication ICs BH4128FV
Electrical characteristics (unless otherwise noted, Ta = 25C, VCC = 3.0V Signal source : fIN (MIX) = 130MHz, fIN (LO) = 129.55MHz, 100dB μV AC level to be indicated by termination) 88 Communication ICs BH4128FV �Measurement circuit 89 Communication ICs BH4128FV �Application example �External dimensions (Units: mm) 90 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