BH4138FV-E2

Communication ICs 2nd mixer and IF amplifier IC for digital cellular BH4138FV The BH4138FV is an IC developed for use with digital cellular phones. This IC contains a 2nd mixer and IF amplifier.
Applications Digital cellular phones
Features 1) Mixer circuit, IF amplifier, and RSSI circuit are builtin. 2) Mixer input frequency response 10MHz to 200MHz. 3) The recommended IF amplifier frequencies are 450kHz and 455kHz.
Absolute maximum ratings (Ta = 25C)
Recommended operating conditions (Ta = 25C) 664 4) 5) 6) 7) High gain IF amplifier (100dB). Battery saving function. Buffer amplifier for RSSI. Low voltage operation (2.3V to 5.5V). Communication ICs BH4138FV
Block diagram 665 Communication ICs
Pin descriptions 666 BH4138FV Communication ICs BH4138FV 667 Communication ICs 668 BH4138FV Communication ICs BH4138FV
Electrical characteristics (unless otherwise noted, Ta = 25C, VCC = 3.0V, SG1 fIN(MIX) = 130MHz, SG2 fIN(LO) = 129.55MHz, 100dBµV, SG3 fIN(IF) = 450kHz)
Alternating level to be indicated by termination.
∗Items marked with an asterisk are reference values 669 Communication ICs
Electrical characteristics (unless otherwise noted, Ta = 25C, VCC = 3.0V, SG1 fIN(MIX) = 130MHz, SG2 fIN(LO) = 129.55MHz, 100dBµV, SG3 fIN(IF) = 450kHz)
Alternating level to be indicated by termination.
∗Items marked with an asterisk are reference values 670 BH4138FV Communication ICs BH4138FV
Measurement circuit 671 Communication ICs
Application example 672 BH4138FV Communication ICs BH4138FV
External dimensions (Units: mm) 673 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