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參數資料
| 型號： | 933948930602 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 接收器 |
| 英文描述： | FM, AUDIO DEMODULATOR, PDSO16 |
| 封裝： | 3.90 MM, PLASTIC, SOT-109-1, MS-012AC, SO-16 |
| 文件頁數： | 8/13頁 |
| 文件大?。?/td> | 150K |
| 代理商： | 933948930602 |
Philips Semiconductors
Product specification
SA604A
High performance low power FM IF system
1997 Nov 07
4
AC ELECTRICAL CHARACTERISTICS
Typical reading at TA = 25°C; VCC = ±6V, unless otherwise stated. IF frequency = 455kHz; IF level = -47dBm; FM modulation = 1kHz with
±8kHz peak deviation. Audio output with C-message weighted filter and de-emphasis capacitor. Test circuit Figure 3. The parameters listed
below are tested using automatic test equipment to assure consistent electrical characterristics. The limits do not represent the ultimate
performance limits of the device. Use of an optimized RF layout will improve many of the listed parameters.
LIMITS
SYMBOL
PARAMETER
TEST CONDITIONS
SA604A
UNITS
MIN
TYP
MAX
Input limiting -3dB
Test at Pin 16
-92
dBm/50
AM rejection
80% AM 1kHz
30
34
dB
Recovered audio level
15nF de-emphasis
80
175
260
mVRMS
Recovered audio level
150pF de-emphasis
530
mVRMS
THD
Total harmonic distortion
-34
-42
dB
S/N
Signal-to-noise ratio
No modulation for noise
73
dB
RF level = -118dBm
0
160
650
mV
RSSI output1
RF level = -68dBm
1.9
2.65
3.1
V
RF level = -18dBm
4.0
4.85
5.6
V
RSSI range
R4 = 100k (Pin 5)
90
dB
RSSI accuracy
R4 = 100k (Pin 5)
±1.5
dB
IF input impedance
1.4
1.6
k
IF output impedance
0.85
1.0
k
Limiter input impedance
1.4
1.6
k
Unmuted audio output resistance
58
k
Muted audio output resistance
58
k
NOTE:
1. SA604 data sheets refer to power at 50
input termination; about 21dB less power actually enters the internal 1.5k input.
SA604 (50)
SA604A (1.5k)/SA605 (1.5k
-97dBm
-118dBm
-47dBm
-68dBm
+3dBm
-18dBm
The SA605 and SA604A are both derived from the same basic die. The SA605 performance plots are directly applicable to the SA604A.
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