BU2630F Rohm, BU2630F Datasheet

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BU2630F

Manufacturer Part Number
BU2630F
Description
Dual PLL frequency synthesizer
Manufacturer
Rohm
Datasheet

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The BU2630F / BU2630FV are a CMOS LSI with an internal dual PLL synthesizer.
VCOs for transmission and reception can be controlled independently, and the reference frequency and main counter
settings can also be programmed separately. This product is designed for applications involving cordless telephones
and communications equipment worldwide.
FApplications
Cordless telephones, amateur short wave radios, industrial transceivers, VHF / UHF frequency generators, and others
FFeatures
1) Operation possible at up to 80MHz (V
2) Low current dissipation
FBlock diagram
Dual PLL frequency synthesizer
BU2630F / BU2630FV
Communication ICs
Dual-system operation : 2.2mA (typ), V
Single-system operation : 1.2mA (typ), V
Non-operating state
: 0.2mA (typ), V
DD
= 2.5).
DD
DD
DD
= 3V
= 3V
= 3V
3) 16-bit main counter.
4) Internal 14-bit reference frequency counter.
5) Unlock detection possible.
6) Four output ports. (open drain)
7) Control possible using 3-wire serial input.
91

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BU2630F Summary of contents

Page 1

... Dual PLL frequency synthesizer BU2630F / BU2630FV The BU2630F / BU2630FV are a CMOS LSI with an internal dual PLL synthesizer. VCOs for transmission and reception can be controlled independently, and the reference frequency and main counter settings can also be programmed separately. This product is designed for applications involving cordless telephones and communications equipment worldwide ...

Page 2

... Communication ICs FAbsolute maximum ratings (Ta = 25_C) FRecommended operating conditions (Ta = 25_C) FPin descriptions 92 BU2630F / BU2630FV ...

Page 3

... Communication ICs FInput / output circuits BU2630F / BU2630FV 93 ...

Page 4

... Communication ICs FElectrical characteristics (unless otherwise noted 25_C BU2630F / BU2630FV = 3.0V 0V ...

Page 5

... Communication ICs FCircuit operation BU2630F / BU2630FV 95 ...

Page 6

... Reference frequency data (3) Output port control data : P-T (P-R) TON (RON Open drain output ON (LO Open drain output OFF (HI) (4) OFF transmission side (reception side) : Operation stopped pull-down : TPD (RPD) high-impedance OFF (5) PS Programmable device change : No. of divisions = 3 X 4095 BU2630F / BU2630FV ...

Page 7

... Communication ICs (6) PL, PH, and PD pin control PLL operation Forced LO state Forced HI state Forced LO state ( pin control (valid only on TX side when unlocked (LO Air pulse output Forced ON state (LO Forced OFF state (HI) (8) Input (00) to test T0 and T1. FApplication example BU2630F / BU2630FV 97 ...

Page 8

... Communication ICs FElectrical characteristic curves FExternal dimensions (Units: mm) 98 BU2630F / BU2630FV ...

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