FMUser RDS-C - 2 Technical Specifications

FMUSER INTERNATIONAL GROUP INC. 广州市汉婷生物技术开发有限公司
4
2 Technical Specifications
Parameter
Condition
Value
General
Supply voltage
JP1: 1-2
8 - 15 V DC
JP1: 2-3
8 - 15 V DC stabilized
Supply current
12 V
60 mA (100 mA with LCD module)
Signal connectors
unbalanced BNC
Data connector
RS-232 (DTE, 9 pins), bi-directional
Communication speed
software switchable 1200, 2400, 4800, 9600, 19200 bps
Communication mode
1 stop bit, 8 data bits, no parity, (no flow control),
ASCII or UECP
TA switching
software or external switch
TA/EON1TA input
TTL with 10 kΩ pull-up, level or edge activated
Program switching
software or external switch
Program input
TTL with 10 kΩ pull-up, level controlled
Expansion bus type
IIC, 400 kHz
RDS Services directly supported
PI, PS, PTY, TP, AF, TA, DI, M/S, PIN, RT, RT+
TMC, EON, PTYN, ECC, LIC, TDC, IH, CT, ODA
RDS signal
Subcarrier frequency
57 kHz
Sampling rate
361 kHz
Bandwidth
± 2.4 kHz (50 dBc)
Output level adjust
default
0 - 1.4 V p-p
Phase shift adjust
stereo
Full range, in 9.5 deg. steps
transmission
Audio/MPX/Pilot input
Recommended load impedance
mono
< 10 kΩ
stereo MPX
< 2 kΩ
Recommended MPX voltage
JP1: 1-2
1.3 - 3.3 V p-p
JP1: 2-3, 12 V
1.3 - 8.0 V p-p
Passthrough voltage gain
2 Hz - 100 kHz
1 (0 dB)
Pilot tone level
min. 120 mV p-p (-26 dBu)
- recommended FM deviation
6.8 kHz
Pilot PLL capture range
8 Hz
Stereo encoder pilot frequency
stereo
19000 Hz ± 2 Hz
required
transmission
Output
Output impedance
100 Ω
Recommended load impedance
> 70 Ω, < 1 nF
Max. output voltage
JP1: 1-2
3.6 V p-p
(RDS + MPX)
JP1: 2-3, 12 V
9.0 V p-p
Recommended RDS level
3 - 11 % of MPX
Notes: p-p - peak-to-peak value
The unit can operate with mono transmitter as well.