SA676DK/01 NXP Semiconductors, SA676DK/01 Datasheet - Page 10

• Manufacturer Part Number: SA676DK/01
• Description: Up-Down Converters LV NB FM IF RECEIVER
• Manufacturer: NXP Semiconductors

Specifications of SA676DK/01

• Maximum Input Frequency: 100 MHz
• Mounting Style: SMD/SMT
• Maximum Power Gain: 17 dB
• Operating Supply Voltage: 3.3 V, 5 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Package / Case: SSOP-20
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: SA676DK/01,112

NXP Semiconductors
13. Application information
SA676
Product data sheet
Fig 9.
The layout is very critical in the performance of the receiver. We highly recommend our demo
board layout.
All of the inductors, the quad tank, and their shield must be grounded. A 10 μF to 15 μF or higher
value tantalum capacitor on the supply line is essential. A low frequency ESR screening test on this
capacitor will ensure consistent good sensitivity in production. A 0.1 μF bypass capacitor on the
supply pin, and grounded near the 44.545 MHz oscillator improves sensitivity by 2 dB to 3 dB.
SA676 45 MHz application circuit (SA676DK demo board)
45 MHz
input
All information provided in this document is subject to legal disclaimers.
C1
C2
Rev. 2 — 12 April 2011
L1
20
1
FL1
mixer
19
2
C23
C5
C6
18
3
OSC
L2
RSSI_OUT
C8
C7
C21
17
4
IF amp
X1
2.4 kΩ
RSSI
R17
C26
16
5
FL2
C10
C9
VREG
V
CC
R18
3.3 kΩ
15
6
Low-voltage mixer FM IF system
7
14
10 kΩ
R10
10 kΩ
AUDIO_OUT
C27
2.2 μF
R11
audio
C18 C17
limiter
13
8
C19
390 pF
C12
11 kΩ
R19
12
9
quad
11
10
C14
002aag117
© NXP B.V. 2011. All rights reserved.
C15
IFT1
SA676
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