Philips Semiconductors
Product specification
Low voltage mixer FM IF system with filter amplifier
and data switch
SA639
BLOCK DIAGRAM
24
23
22
21
20
19
18
17
16
15
14
13
IF
AMP
MIXER
GND
LIMITER
OSCILLATOR
FAST
RSSI
QUAD
V
CC
E
B
RSSI
– +
PWR
DWN
+ –
+ –
DATA
1
2
3
4
5
6
7
8
9
10
11
12
SR00031
Figure 2. Block Diagram
ABSOLUTE MAXIMUM RATINGS
SYMBOL
V
CC
V
IN
T
STG
T
A
Single supply voltage
Voltage applied to any other
Storage temperature range
Operating ambient temperature range SA639
2
pin
1
PARAMETER
RATING
-0.3 to 6
-0.3 to (V
CC
+0.3)
-65 to +150
-40 to +85
UNITS
V
V
°
C
°
C
NOTE:
1. Except logic input pins (Pins 8 and 12) which can have 6V maximum.
2.
θ
JA
Thermal impedance (DH package) 117
°
C/W
DC ELECTRICAL CHARACTERISTICS
V
CC
= +3V, T
A
= 25
°
C; unless otherwise stated.
LIMITS
SYMBOL
V
CC
I
CC
I
CC
PARAMETER
Power supply voltage range
DC current drain
Standby
Input current
Input level
t
ON
t
OFF
Power up time
Power down time
Power up settling time
Switch closed
Switch open (output tri-state)
Input current
Switch activation time
Pin 8 = LOW, Pin 12 = HIGH
Pin 8 = HIGH, Pin 12 = HIGH
Pin 8 = LOW
Pin 8 = HIGH
Pin 8 = LOW
Pin 8 =
HIGH
NO TAG
RSSI valid (10% to 90%)
RSSI invalid (90% to 10%)
Data output valid
Pin 12 = LOW, PIN 8 = LOW
Pin 12 = HIGH
Pin 12 = LOW
Pin 12 = HIGH
0.5
0
0.7 V
CC
0
0.7V
CC
10
5
100
200
0.3 V
CC
6
10
4
1
TEST CONDITIONS
MIN
2.7
8.33
131.9
-3σ
SA639
TYP
3.0
8.6
140
8.87
148.1
+3σ
MAX
5.5
10
500
10
4
0.3V
CC
6
µs
µs
µs
V
V
µA
µs
V
mA
µA
µA
V
UNITS
NOTE:
1. When the device is forced in power down mode via Pin 8, the Data Switch will output a voltage close to 1.6V and the state of the switch
control input will have no effect.
1998 Feb 10
3
PHILIPS [ NXP SEMICONDUCTORS ]
