User Manual for FISHMAN models including: 351540036, RMU-351540036, RMU351540036, RTX1290 Audio Wireless Module, RTX1290, Audio Wireless Module, Wireless Module, Module

User Manual (with FCC and IC warning statements) updated 3-31-22

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User Manual

Fishman 351540036 RMU-351540036 RMU351540036 351540036

FISHMAN


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351540036-Users-Manual-Fishman-rmu-351540036-ex-1-3
FISHMAN
RTX1290 AUDIO WIRELESS MODULE Model # 351540036 USER MANUAL

FCC ID: RMU-351540036 IC: 10812A-351540036 Model # 351540036
FCC Compliance Statement
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and (2) This device must accept any interference received, including
interference that may cause undesired operation.
FCC Interference Statement
This equipment has been tested and found to comply with the limits for a Class B digital devices, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one of the following measures:
 Reorient or relocate the receiving antenna.  Increase the separation between the equipment and receiver.  Connect the equipment into an outlet on a circuit different from
that to switch the receiver is connected.

 Consult the dealer or an experienced radio/TV technician for help.
Warning
Changes or modifications not expressly approved by FISHMAN could void the user's authority to operate the equipment.
This device complies with Industry Canada license-exempt RSS standard(s): Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference that may cause undesired operation of the device.
Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation est autorisée aux deux conditions suivantes : (1) l'appareil ne doit pas produire de brouillage, et (2) l'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement.
WARNING! FCC and IC Radiation Exposure Statement: This portable equipment with its antenna complies with FCC's and IC's RF radiation exposure limits set forth for an uncontrolled environment. To maintain compliance follow the instructions below:
1. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. 2. Avoid direct contact to the antenna, or keep contact to a minimum while using this equipment.

1. INTRODUCTION
The RTX1290 wireless module is a 2.4GHz Audio wireless part, based on a Dialog Semiconductor DA14195 audio processor, a Nordic nRF52 radio chip and an RF Power Amplifier. The module offers full DA14195 feature set and requires only a motherboard and power source like battery. Please note that the RTX1290 module only provides digital audio interfaces, and hence, if an analog audio interface is required, a hardware codec and analogue circuits needs to be added to the motherboard as well. The module has the integrated 2 PCB antennas.
2. FEATURES
- Complies with sub 10 dBm EIRP 2.4GHz worldwide standards. - Supported audio codec and audio features: G.726, G.722, CELT 4.0, PAEC 6.0, SheersoundTM along with other options via software customization - Operating range:
1. Power supply: VBAT: 2.0-5.0VDC (typically battery supply) VBUS: 4.2-5.75VDC (typically USB) 2. Ambient temperature: -20°C to +60°C - USB charge control for rechargeable battery (e.g. Lithium-ion) Analogue Interfaces - 2 input 10-bit ADC, single ended/differential Digital Interfaces - USB 2.0 HS1/FS Device MAC/PHY with DMA - 28 I/O pads with state retention and slope control - Dual UART full duplex 9.6 kBd to 812.5 kBd with FIFO and DMA support - Dual SPI interface 20.736 MHz (master/slave) - I2C interface 100 kHz, 400 kHz, 1.152 MHz (master/slave) - Dual PCM interface, M/S, 2 x 32 bits, 196 kHz, I2S - Three stereo PDM I/O for digital microphones Radio Transceiver - 2.4 GHz transceiver Radio Transmitter and protocol features - Interference avoidance algorithms for avoiding interference from WiFi and other

2.4GHz standards. The EUT transmits on two RF channels alternately. If interference degrades
one RF channel, the other RF channel provides the full data. The degradation will be sensed by the receiver, and the receiver provides this information to the transmitter. The transmitter will then relocate both RF channels to unoccupied channels.
- Antenna diversity - Optional interference avoidance algorithms utilizing:
1. Dual slot diversity 2. Seamless bearer selection and handover 3. Retransmission of real-time data. - HW provides adjustable saturation power from +4.5dBm to 9.5dBm conducted power. Available program memory
­ 32 Mbit flash

3. SPECIFICATIONS

 Operation Frequency Band 2.402GHZ ~ 2.480GHz unlicensed ISM

 Channel step size

3 MHz

 Receiver sensitivity

Typ: -90 dBm

 Transmit Power Range Typ: 4.5 ­ 9.5 dBm

 Supply voltage on pin VBAT 2 ­ 5V

 Supply voltage on pin VBUS_CHARGE 4.2 ­ 5.75V

 Supply voltage on IO banks 1.7 ­ 3.45V

 Supply voltage for RF power amp 1.8V

 Maximum current draw on VBUS for charging on VBAT 360 ­

440 mA

 Operation current from 3.7V Li-Ion battery up to 100mA

depends on usage.

 Host Interface USB 2.0

 Audio Interface Analog

 Dimension

45.7mm x 20.3mm

 The separation distance for RF Exposure is 10 mm.

4.TYPICAL CONNECTION DIAGRAM

VSUPPLY C42 0.1uF

VBUS_CHARGE

VBAT C43

TP10

F1 +5V M4
M1 M3

1uF

P2

Rechargeable Battery 3.7V

1 2

3

+BATT C44 10pF

R43 0

Star Connection

C45

R44

0.1 Ohm

10uF -BATT

Star Connection

L2 L3
TP11 K1
C46

Header 3-pin PH R/A

+1.8VDD NTC_BATT

TP12 0.1uF

U10

RESET VBUS_CHARGE
VSUPPLY

ANT1

VBAT

SOCN SOCP
VDD_1V8

ANT2
GND VDD_PA

B2
B6 C48 10pF

R49 - RF Power Set

R49

22uF 16V

15

C47

C50 22uF 16V

FB4

+1.8VDD

C49 330 Ohm 1.2A

100pF

+3.3VDD

L1 C51

VDD_3V3

To

Host

Device

UTX URX

TP13
To ADC Device I2S_MCLK
NTC_BATT
To On/Off switch PON

0.1uF

J3 J2
H3 H2 K3 G3
L5 L7 K4 J4
G4 H1 G2
F2 E3 E2

P0_0/UTX P0_1/URX P0_2
P0_3 P0_4 P0_5 P0_6/32K_XTAL1
P0_7/32K_XTAL2 P0_8 P0_9 P0_10
P0_11/BXTAL P0_12/SPDIF_IN P0_13/ADC1/COMP P0_14/ADC0/NTC
P0_15/PON

To

ADC Device

I2S_LRCK I2S_SCLK

I2S_RX

J7 H7 G7
F7 E7 D7 E6
F6 F5 K6 K7

P1_0 P1_1 P1_2 P1_3
P1_4 P1_5 P1_6/LED0 P1_7/LED1
P1_8/LED2 SWDIO SWCLK

D3 D4 C4 E4 F4 H6

P2_0
P2_1 P2_2 RF_SPIINT/SYNC RF_P0.12
RF_P0.14

2 GND 7 GND G GND

+2.8V_ADC

U11 TCR2LE28,LM(CT

VDDIO_0 VDDIO_1 VDDIO_2

J8 H8
F8

4 VOUT VIN 3 C52

1uF 5 NC

Cont 1

+3.3VDD

D4

C53 1uF

TVS Diode NUP3115UPMUTAG 1 D1 VBUS 6

2 D2 NC 5

USB-C Recepticle J1

3 D3 NC 4

B12

A1

B11

A2

B10

A3

B9

A4

B8

A5

USBN USBP

M6 M7

B7

A6

B6

A7

B5

A8

VDD_USB L8

VBUS_CHARGE

FB5

C55

C57 330 Ohm 1.2A C54

C56

R52

B4

A9

B3

A10

B2

A11

B1

A12

R51 5.1K

R53 4.7K

TP14

100pF

0.1uF

0.1uF

10uF

5.1K

NTC_BATT

R54 NU

FB6

330 Ohm 1.2A

GND GND GND
GND GND GND GND
GND GND GND

B8 C7 F3 G8 H4
J1 J6 M2 M5
M8

Fishman RTX1290 Module

5.OEM INTEGRATION INSTRUCTION
This 2.4 GHz wireless module can be configured as Tx or Rx based on the firmware loaded. The user must pick a host device like MCU to introduce the feature set required. It will be connected to the module by the

UTX/URX lines. Also a USB-C jack is required to charge Li-Ion battery if used. See the typical connection diagram. This module required an external ADC chip for Tx and an external DAC chip for Rx connected by the I2S lines to get the analog audio input and output. In addition to this, it requires to connect On/Off switch to pin PON of the module to power on/off the module. All required LEDs and additional switches can be connected to the host device. The module is used the connector like edge plated pins (please see the picture on front page), so the matching footprint on the motherboard must be used. Please contact Fishman for additional information.
6. LABELING INSTRUCTION
Any end products must have the following on the label: Contains FCC ID: RMU-351540036 Contains IC: 10812A- 351540036


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