QN8075 查看數據表（PDF） - Unspecified

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QN8075

Single Chip Low Power FM Receiver for Portable Devices

Unspecified 

Table 6: Receiver Characteristics

(Typical values are at Vcc = 3.3V, f carrier=88 MHz and TA = 25oC).

SYMBOL

SRX

IP3

RejAM

Rin

SRX_Adj

SRX_Alt

PARAMETERS

FM sensitivity

Input referred IP3

AM suppression

RF input impedance

Adjacent channel

rejection

Alternate channel

rejection

SNRaudio_in Audio SNR

THDaudio_in Audio THD

αLR in

AttPilot

BLR

L/R separation

Pilot rejection

L/R channel imbalance

τemph1

De-emphasis time

constant

Vaudio out

RLOAD

CLOAD

RSSIerr

Audio output voltage

Audio output Loading

Resistance

Audio output loading

capacitance

RSSI uncertainty

THDdriver

Audio THD after

earphone driver

Notes:

1. Guaranteed by design.

CONDITIONS

(S+N)/N = 26dB

At maximum gain

At pin RFI

200 kHz offset

400 kHz offset

MONO, Δf = 22.5 kHz1

STEREO, Δf = 67.5 kHz, Δfpilot =

6.75 kHz

MONO, Δf = 75 kHz

STEREO, Δf = 67.5 kHz, Δfpilot =

6.75 kHz

L and R channel gain imbalance

at 1 kHz offset from DC

PETC = 1

PETC = 0

Peak-Peak, single ended

RLOAD=32Ω, 1 Vpp output

RLOAD=1kΩ, 1 Vpp output

MIN

71.3

47.5

32

-3

TYP

1.4

120

52

5

49

MAX

UNIT

μVEMF

dBμV

dB

kΩ

dB

62

dB

58

dB

67

0.04

%

0.03

%

47

dB

70

dB

1

dB

75 78.7 μs

50 52.5 μs

1

1

V

Ω

20

pF

3

dB

0.05

%

0.03

Table 7: Timing Characteristics

(Typical values are at Vcc = 3.3V and TA = 25oC).

Rev 0.2c (09/02)

Copyright ©2011 by Quintic Corporation

Page 6

Confidential A

Confidential Information contained herein is covered under Non-Disclosure Agreement (NDA).

Advance Technical Information. This is a product under development. Characteristics and specifications are subject to change without notice.

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