RTC6701 Preliminary Data Sheet DEC 2005 Rev. Date From Description V.002 V.003 10/3/2005 10/31/2005 R2200 R2200 Original Modify the following items: 1. Add pin 17 PD_REG1D8 description; 1 for power down and 0 for power on 2. Add Absolute Maximum Ratings V.004 V.004 12/1/2005 12/2/2005 R2200 R2100 1.Add “SPI Digital Timing Diagram” and revised date code. 2.Update output power data. 3.Removed RX IF input in Absolute Maximum Ratings. 4.Add mini. Audio SNR. R2200 Applicant: R2200 Document Title: Data Sheet of RTC6701 Approvals: R2000: S.C. Wong R2500: C.J. Chao R2100: J.Y. Tsai Marketing: Jack Chang Contents: 8 Attach: 0 Total Page: 9 File Format: Word R2200: W.K. Deng R2300: T.S. Liou Document No.: RTC6701-DST-004 ☆ Signature on file in DC ☆ www.richwave.com.tw Specifications subject to change without notice Rev V.004 Preliminary Confidential Proprietary 1 RTC6701 Preliminary Data Sheet DEC 2005 RTC6701 CMOS 2.4GHz FM/FSK Transmitter Product Description The RTC6701 is a FM/FSK transmitter intended for application on 2.4GHz ISM band analog FM or digital FSK transmission. The chip includes a RF modulator, two channels of audio modulator and a power amplifier with up to +11.5dBm power output. The RF modulator block, which is frequency-synthesizer based with an integrated 2.4GHz VCO, generates the 2.4GHz FM signal modulated from stereo audio L(left)/R(left) signals. On-chip two audio modulators with stereo audio input signals provide the FM audio modulated signal at 6 MHz and 6.5MHz, respectively. Monaural application is also possible by turning off one of two audio modulators. Transmission frequency can be set by internal register via SPI programming, or by selecting among 4 fixed channels using three dedicated pins. Output power of +1.5dBm or +11.5dBm can be configured via pins 28 and 29 to fit CE/FCC requirement easily. The device is available in a 32-pin QFN package. Features 3.3V power supply 2.4GHz ISM band FM modulator FM/FSK transmitter operation Simple three digital pins setting 4 fixed channels to eliminate external micro-controller Output Power +1.5dBm or +11.5dBm, selected by pin connection FM sound carriers at 6 and 6.5MHz CMOS technology On-chip VCO and PLL Transmitter frequency programmability by SPI 32-pin leadless QFN package Application AV Sender FSK transmitter Baby Monitor Wireless Camera Wireless Audio Wireless Earphone www.richwave.com.tw Specifications subject to change without notice Rev V.004 Preliminary Confidential Proprietary 2 RTC6701 Preliminary Data Sheet DEC 2005 24 SPIDATA/CS2 23 SPILE/CS1 22 SPICLK/CS0 21 VDD33 20 XTAL2 19 XTAL1 18 PD_REG1D8 17 BX 25 PAOUT2 28 SYNVSS PAOUT1 29 26 RFGND1 30 RFGND2 PAVDD 31 27 NC 1 VCOVDD 32 Block Diagram REG1D8 PA2 PA1 R Counter GND N/A Counter 3 VT 2 RF VCO AVT2 4 CP 5 Charge Pump PFD SPI/ REGISTER_CONT ACP2 6 AOUT2 7 Audio2_Syn REGULATOR (3.3V to 1.8V) Audio1_syn BC www.richwave.com.tw Specifications subject to change without notice Rev V.004 15 16 BCR 14 VDD SPI_SE 13 AVDD1 12 ACP1 11 AVT1 10 NC AOUT1 9 8 AVDD2 Preliminary Confidential Proprietary 3 RTC6701 Preliminary Data Sheet DEC 2005 Pin Descriptions PIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 NAME VCOVDD VT GND CP AVT2 ACP2 AOUT2 AVDD2 AOUT1 NC AVT1 ACP1 AVDD1 VDD SPI_SE BCR REG1D8 I/O Supply In Analog In Analog GND Analog Out Analog In Analog Out Analog Out Supply In Analog Out NC Analog In Analog Out Supply In Supply In Digital In Analog I/O Analog Out 18 PD_REG1D8 Digital In 19 20 21 XTAL1 XTAL2 VDD33 CS0 SPICLK CS1 SPILE CS2 SPIDATA BX SYNVSS RFGND2 PAOUT2 PAOUT1 RFGND1 PAVDD NC Analog I/O Analog I/O Supply In Digital In Digital In Digital In Digital In Digital In Digital In Digital In Digital GND Analog GND Analog Out Analog Out Analog GND Supply In NC 22 23 24 25 26 27 28 29 30 31 32 FUNCTION VDD for VCO1 Vtune for VCO Analog GND Synthesizer charge pump output Vtune for audio 2 PLL Charge pump for audio 2 FM modulated audio 2 output 3.3V power supply for audio 2 modulator FM modulated audio 1 output NC Vtune for audio1 PLL Charge pump for audio 1 3.3V power supply for audio 1 modulator 3.3V Digital DC power supply Switch mode or SPI selection (Internal pull high) Reference current by connecting 10k resistor Regulator OUT 1.8V regulator output Power down for 1.8V regulator 1: Power Down; 0: Power On Crystal connection Crystal connection 3.3V DC power supply for digital circuits Easy channel selection2 (Internal pull high) SPI bus clock input Easy Channel selection2(Internal pull high) SPI bus latch enable input Easy Channel selection2 (Internal pull high) SPI bus data input Alternative band selection2 (Internal pull high) Digital GND for synthesizer RF GND Connect with PAOUT1 for +12dBm output PA output for 0dBm RF GND 3.3V VDD for PA ESD NC Note 1. Connect to 3.3V supply through a resistor. Nominal voltage at this pin=2.5V. Note 2. Digital pins (15, 22, 23, 24, 25) with internal pull-high circuits can be left floating for logical high. www.richwave.com.tw Specifications subject to change without notice Rev V.004 Preliminary Confidential Proprietary 4 RTC6701 Preliminary Data Sheet DEC 2005 ELECTRICAL SPECIFICATIONS (1) Absolute Maximum Ratings SYMBOL Tstr Totr Vdd Vlog PARAMETER Storage Temperature Range Operating Temperature Range Supply Voltage Logic control signal Ratings UNIT -65 to +150 -40 to +85 °C °C V V -0.5 to +5 -0.5 to +5 The maximum rating must not be exceeded at any time. Do not operate the device under conditions outside the above ratings. (2) DC Electrical Characteristics SYMBOL Tj VDD PARAMETER CONDITION MIN. TYP. MAX. UNIT - -40 3.1 25 3.3 85 3.5 °C V mA Temperature Range TT 25C, 3.3V 49 I_module Supply Voltage Power consumption for chip (+12dBm output) Power consumption for module TT 25C, 3.3V 54 I_pd Power down current leakage TT 25C, 3.3V 1 I_RF Fref V_IH V_IL Oscillator operating frequency High Level Input Voltage for Digital Interface Low Level Input Voltage for Digital Interface mA 10 8 V_IO=3V 0.7xV_IO V_IO+0.3 -0.3 0.3xV_IO uA MHz V V (3) Transmitter Specifications SYMBOL Fc Pout_H* Pout_L* 2ndH_H* PN PARAMETER Frequency Range Maximum output power at high power mode Maximum output power at low power mode nd The 2 Harmonic referenced with the fundamental signal at high power mode The phase noise at 2414GHz CONDITION MIN. TYP. 2.37 Connect PAOUT1 and PAOUT2 Connect PAOUT1 only MAX. UNIT 2.51 GHz 10.5 11.5 12.5 dBm 0.5 1.5 2.5 dBm With reference filter design -30 dBc 100KHz offset 1MHz offset -85 -110 dBc/Hz With reference filter design -40 dBc With reference filter design -30 dBc With reference filter design -40 dBc rd 3rdH_H* 2ndH_L* 3rdH_L* The 3 Harmonic referenced with the fundamental signal at high power mode nd The 2 Harmonic referenced with the fundamental signal at low power mode rd The 3 Harmonic referenced with the fundamental signal at low power mode * All with proper match at the PA output, before further ceramic filtering. www.richwave.com.tw Specifications subject to change without notice Rev V.004 Preliminary Confidential Proprietary 5 RTC6701 Preliminary Data Sheet DEC 2005 (3) Transmitter Specifications (continued) SYMBOL Video Zin_video Vin_video Audio VTAA fau Vin_audio THD F_corner SNR_A PARAMETER Video input impedance (as reference design) Video peak to peak input voltage (as reference design) Video carrier to audio carrier ratio (as reference design) Audio carrier frequency Audio peak to peak voltage at audio Vtune pin Total harmonic distortion measurement by RTC6711 receiver 3dB corner frequency of pre-emphasis (as reference design) Audio SNR (as reference design,) With pre-emphasis/ de-emphasis, CONDITION MIN. 75 ohm load No video and audio signal in Left sound Right sound @1KHz tone input with ±25KHz frequency deviation @1KHz tone input with ±25KHz frequency deviation @1KHz tone input with ±25KHz frequency deviation www.richwave.com.tw Specifications subject to change without notice Rev V.004 24 TYP. UNIT 75 Ω 1 Vpp 27 30 dBc 6 6.5 MHz 30 mVpp 0.6 45 MAX. 0.9 % 4 kHz 47 dB Preliminary Confidential Proprietary 6 RTC6701 Preliminary Data Sheet DEC 2005 (4) SPI Digital Timing Diagram 1st data 2nd data Control Bit Invalid Data DATA LSB MSB CLK t1 t2 t3 t6 t7 LE t4 t5 P a ra me t er M in. Ty p. M a x. Un it t1 20 - - ns t2 20 - - ns t3 30 - - ns t4 30 - - ns t5 100 - - ns t6 20 - - ns t7 100 - - ns Note: 1.) On the rising edge of the clock, one bit of data is transferred into the shirt register. 2.) LE should be *L* when the data is transferred into the shirt register. www.richwave.com.tw Specifications subject to change without notice Rev V.004 Preliminary Confidential Proprietary 7 RTC6701 Preliminary Data Sheet DEC 2005 Channel Selection There are two principle modes for channel selection. SPI_SE (Pin 7) High Low Mode SPI Mode Easy Channel Selection Mode (1) Easy channel selection mode When pin 15 (SPI_SE) is set at low (0V), the chip operates in easy channel selection mode. Operation frequency can be selected by the pins 25(BX), 24(CS2), 23(CS1) and 22(CS0). The selected channel frequencies are listed in the table below. BX=0 Pin25 (BX) is pulled to low for normal ISM band, and operation frequency table show as following Table. BX SPI_SE 011 0 0 2414MHz Pin22/Pin23/Pin24 CS0/CS1/CS2 101 110 111 2432MHz 2450MHz 2468MHz BX=1 Reserved for alternative band selection (2) SPI mode When pin 15 (SPI_SE) is set at high (3.3V), the chip works as in the SPI mode and the pins 24(SPIDATA), 23(SPILE) and 22(SPICLK) are used for ‘SPI’ inputs for 3-wire programming interface. The BX is “don’t care”. SPI REGISTER DEFINITION Address 00: Synthesizer Register A Bits 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Name Syn_RF_R_Reg Syn_RF_A_Reg address R14 R13 R12 R11 R10 R9 R8 R7 R6 R5 R4 R3 R2 R1 R0 A6 A5 A4 A3 A2 A1 A0 PIN Default 0 0 0 0 0 0 1 1 0 0 1 0 0 0 0 0 1 1 1 1 0 0 0 0 Syn_RF_R_Reg : R counter divider ratio control register [14:0] Syn_RF_A_Reg : A counter divider ratio control register [6:0] R14=MSB, R0=LSB For integer N Synthesizer, the RF LO frequency is calculated by (N*64+A)*fref/R, where fref is the frequency of external reference oscillator (8 MHz). Ex for channel 1 operation (f = 2414MHz) Default: R=400; N=1885; A=60 2414MHz=(1885*64+60)*8MHz/400 www.richwave.com.tw Specifications subject to change without notice Rev V.004 Preliminary Confidential Proprietary 8 RTC6701 Preliminary Data Sheet DEC 2005 Address 01: Synthesizer Register B Bits 23 22 21 20 19 Name 18 17 16 15 14 13 12 11 10 Syn_RF_N_Reg 9 8 7 CP_RF N12 N11 N10 N9 N8 N7 N6 N5 N4 N3 N2 N1 N0 PIN Default 0 0 1 1 1 0 1 0 1 1 1 0 1 0 0 6 5 SC _trl 1 4 3 Not used 2 1 0 address 0 X X X X X 0 1 Syn_RF_N_Reg : N counter divider ratio control register [12:0] (default R ratio=400) CP_RF [2:0] RF charge pump current control (from 50uA to 6mA, default=100uA) SC_ctrl: external/internal SC_select control pin (LOW=internal). If set “1” in RTC67 series then charge pump will enter the testing mode ----Only for internal testing Address 10: Synthesizer Register C Bits 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 PA_Bias address Name Not Used Not Used Mout PRE_control Not used PIN 8 7 6 5 4 3 2 1 0 1 0 2 1 0 1 0 Default X X X X X X X X X X X X 0 0 1 0 1 X X X 1 0 1 0 Mout : Multi-function output select (00,01,11,10)=(gnd, lock in detect ,RF divider output, reference clk output) PRE_control[2:0]: prescalar current control (20~140uA) PA_Bias[1:0]: PA bias resistor selection Address 11: Synthesizer Register D Bits 23 22 21 20 Name 19 18 17 16 15 14 13 Not Used X X X X X X X 11 10 9 8 PA_ VCOSC PD PIN Default 12 X X X X 1 1 0 0 0 7 6 5 Audio_div 7 0 6 1 5 0 4 0 4 3 2 1 0 Not use ACP address d 3 2 1 0 1 0 0 0 1 1 VCOSC[1:0]: 2-bit RF VCO switch capacitor control in RTC6701 PA_PD 1: PA power down control, 0 for power on and 1 for power down Audio_div[5:0]: Reference clock division ratio in audio carrier frequency synthesizer. ACP[1:0]: Audio charge pump current control (default 00:20uA, 01:50uA, 10: 110uA, 11: 140uA) www.richwave.com.tw Specifications subject to change without notice Rev V.004 Preliminary Confidential Proprietary 9 RTC6701 Preliminary Data Sheet DEC 2005 PACKAGE QFN 5X5 32 pins www.richwave.com.tw Specifications subject to change without notice Rev V.004 Preliminary Confidential Proprietary 10