F4481 datasheet(13/45 Pages) RENESAS

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F4481 Datasheet

December 15, 2020

Table 5.

Electrical Characteristics – Band 1 (400MHz to 500MHz)

See the F4481 Applications Circuit. Unless stated otherwise, specifications apply when operated with VCC = +3.3V, TEP = +25°C, fRF = 450MHz,

STBY_A = STBY_B = STBY_C = STBY_D = HIGH, ZS = 100Ω differential, ZL = 50Ω single-ended, maximum gain setting, and output power =

0dBm/tone. EVKit trace and connector losses are de-embedded.

Parameter

Symbol

Condition

Minimum

Typical

Maximum

Units

RF Input Return Loss

RLIN

15 [a]

RF Output Return Loss

RLOUT

Maximum Gain

GMAX

DSA 0dB attenuation.

24.5

Mid-Range Gain

GMID

DSA 14dB attenuation.

10.5

Minimum Gain

GMIN

DSA 31.5dB attenuation.

-7.5

-4.5

-1.8

Gain Variation Over Temperature

GTEMP

DSA 0dB attenuation.

Over TEP = -40°C to +105°C,

and relative to 25°C.

+1.6 / -2.4

DSA 14dB attenuation.

Over TEP = -40°C to +105°C,

and relative to 25°C.

+1.4 / -2.1

Gain Flatness

GFLAT

Any 100MHz BW.

Gain Ripple

GRIPPLE

In any 20MHz range.

0.4

Intra-die Channel-to-Channel

Differences in Gain

GA - GB

Worst case difference in Gain

for any 2dB step over the 0dB

to 30dB attenuation range

(with channels A and B both

set to identical DSA

attenuation levels).

0.2

Reverse Isolation

GREV

DSA 0dB attenuation.

DSA 31.5dB attenuation.

Intra-Die Channel Isolation [b]

ISOLA-B

Any RF input/output

combination involving channel

A paired with channel B.

DSA = 0dB.

Inter-Die Channel Isolation [b]

ISOLB-C

Any RF input / output

combination involving channel

B (die 1) paired with channel

C (die 2). DSA = 0dB.

Filter Group Delay in Passband

fRF = 400MHz to 500MHz.

2.5

Filter Group Delay Ripple

τRIPPLE

fRF = 400MHz to 500MHz.

1.1

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