NE604A Просмотр технического описания (PDF) - Philips Electronics
Номер в каталоге
Компоненты Описание
производитель
NE604A Datasheet PDF : 10 Pages
| |||
Philips Semiconductors
High performance low power FM IF system
Product specification
NE/SA604A
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
NE604A
SA604A
UNITS
MIN
TYP MAX MIN
TYP MAX
Input limiting -3dB
Test at Pin 16
-92
-92
dBm/50Ω
AM rejection
80% AM 1kHz
30
34
30
34
dB
THD
Recovered audio level
Recovered audio level
Total harmonic distortion
15nF de-emphasis
150pF de-emphasis
110
175
250
80
175
260
mVRMS
530
530
mVRMS
-35
-42
-34
-42
dB
S/N Signal-to-noise ratio
No modulation for noise
73
73
dB
RF level = -118dBm
0
160
550
0
160
650
mV
RSSI output1
RF level = -68dBm
2.0
2.65
3.0
1.9
2.65
3.1
V
RF level = -18dBm
4.1
4.85
5.5
4.0
4.85
5.6
V
RSSI range
R4 = 100k (Pin 5)
90
90
dB
RSSI accuracy
R4 = 100k (Pin 5)
±1.5
±1.5
dB
IF input impedance
1.4
1.6
1.4
1.6
kΩ
IF output impedance
0.85
1.0
0.85
1.0
kΩ
Limiter input impedance
1.4
1.6
1.4
1.6
kΩ
Unmuted audio output resis-
tance
58
58
kΩ
Muted audio output resis-
tance
58
58
kΩ
NOTE:
1. NE604 data sheets refer to power at 50Ω input termination; about 21dB less power actually enters the internal 1.5k input.
NE604 (50)
NE604A (1.5k)/NE605 (1.5k
-97dBm
-118dBm
-47dBm
-68dBm
+3dBm
-18dBm
The NE605 and NE604A are both derived from the same basic die. The NE605 performance plots are directly applicable to the NE604A.
1994 Dec 15
399
Share Link: 