SA58641 Philips Semiconductors, SA58641 Datasheet - Page 6

• Manufacturer Part Number: SA58641
• Description: High performance mixer FM IF system
• Manufacturer: Philips Semiconductors

Philips Semiconductors
PERFORMANCE CHARACTERISTICS
2004 Dec 16
Receiver RF Performance – T = 85 C, Audio Level = 131mV
High performance mixer FM IF system
with high-speed RSSI
–13
–15
–17
–19
–21
–23
–25
–11
–10
–20
–30
–40
–50
–60
–70
–80
–90
–10
–20
–30
–40
–50
–60
–70
–80
–90
85
–5
–7
–9
10
10
0
Mixer IIP3 at 240MHz vs Temperature and Supply Voltage
0
–40
NOISE
Receiver RF Performance — T = 25 C,
AUDIO
AUDIO
THD+N
NOISE
THD+N
AM REJECTION
Audio Level = 129mV
AM REJECTION
0
RF INPUT LEVEL (dBm)
Temperature ( C)
25
5.5V
RF level = -45 dBm
RMS
70
(continued)
Figure 4. Performance Characteristics
RSSI
RSSI
RMS
2
1.8
1.6
1.4
1.3
1.0
0.8
0.6
0.4
0.2
0
2
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0
6
–100
–110
–10
–20
–30
–40
–50
–60
–70
–80
–90
–10
–20
–30
–40
–50
–60
–70
–80
–90
10
0
0
1.8
1.6
1.4
1.2
0.8
0.6
0.4
0.2
2
1
0
Mixer Third Order Intercept and Compression
RSSI vs RF Input Level and Temperature
AUDIO
NOISE
RSSI
Receiver RF Performance — T = –40 C,
AM REJECTION
THD+N
Audio Level = 118mV
RF INPUT LEVEL (dBm)
RF INPUT POWER (dBm)
RF INPUT LEVEL (dBm)
RMS
SA58641
25 C
Objective data
85 C
–40 C
SR02523
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0