Specification
Absolute Maximum Ratings
Exceeding the maximum rating can result in device damage. Operation of the device outside the operating limits is not implied.
Supply voltage
-0.3 to 7.0V
Input voltage at any pin (ref VSS = 0V)
Sink/source current (supply pins)
(other pins)
-0.3 to (VDD + 0.3V)
+/- 30mA
+/- 20mA
Total device dissipation @ TAMB 25°C
Derating
800mW Max.
10mW/°C
Operating temperature range:
FX805J
FX805LG/LS
FX805J
-40°C to +85°C (cerdip)
-40°C to +85°C (plastic)
-55°C to +125°C (cerdip)
-40°C to +85°C (plastic)
Storage temperature range:
FX805LG/LS
Operating Limits
All device characteristics are measured under the following conditions unless otherwise specified:
VDD = 5.0V. TAMB = 25°C. Xtal/Clock fXTAL = 4.0MHz. Audio Level 0dB ref: = 308mVrms @ 1kHz.
Composite Signal = 308mVrms @ 1kHz + 75mVrms Noise + 31mVrms Sub-Audio Signal.
Noise Bandwidth = 5kHz Band Limited Gaussian.
Characteristics
See Note
Min.
Typ.
Max.
Unit
Static Values
Supply Voltage
Supply Current
4.5
–
–
5.0
5.0
1.9
0.9
5.5
–
–
V
(All Functions Enabled)
(Decoders Only Enabled)
(Powersave All)
mA
mA
mA
–
–
Analogue Impedances
Rx Sub-Audio Input
Audio Input
Audio By-Pass Switch ‘On’
Audio By-Pass Switch ‘Off’
Rx Amp Input (+ and -)
Comparator Input (+ and -)
Rx Sub-Audio Output
350
350
–
1.0
1.0
1. 0
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
kΩ
kΩ
kΩ
MΩ
MΩ
MΩ
kΩ
kΩ
kΩ
kΩ
kΩ
5
5
2.0
10.0
10.0
10.0
2.0
2.0
500
2.0
500
Tx Sub-Audio Output (Encoder Enabled)
(Encoder Disabled)
Audio Output
5
5
5
5
(Enabled)
(Disabled)
Rx Amp and Comparator Outputs
Large Signal
–
6.0
–
kΩ
Small Signal
–
600
–
Ω
Dynamic Values
Digital Interface
Input Logic “1”
Input Logic “0”
1
1
2
3
3
1
1
4
3.5
–
4.6
–
–
–
–
–
–
–
–
–
–
–
–
1.5
–
0.4
4.0
7.5
1.0
4.0
V
V
V
Output Logic “1”
Output Logic “0”
(IOH = -120µA)
(IOL = 360µA)
V
I
OUT Tristate (Logic “1” or “0”)
Input Capacitance
Logic Input Current (VIN = 0 to 5.0V)
µA
pF
µA
µA
–
–
IOX
(VOUT = 5.0V)
Overall Performance
CTCSS – Decode
Sensitivity
(Pure CTCSS Tone)
(Composite Signal)
6
9
–
-26.0
–
dB
Response Time
100Hz to 257Hz Tone
65Hz Tone
Tone Measurement Resolution
Tone Measurement Accuracy
NOTONE Response Time
False Tone Interrupts
–
–
–
–
–
–
–
–
0.2
0.5
–
250
375
–
–
250
–
ms
ms
%
%
ms
/Hr
(Composite Signal)
(Noise input only)
7
10
20.0
14
CMLMICRO [ CML MICROCIRCUITS ]
