S1M8656 Samsung Semiconductor, Inc., S1M8656 Datasheet
S1M8656
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S1M8656 Summary of contents
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... IF frequency processing, basband processing , and digital interface. The receiver IC (S1M8656A)and transmitter IC (S1M8657) are provided as a KIT. S1M8656A is a receiver IC, installed with a Rx AGC, Baseband Converter, Baseband analog filter, and A-D Converter. It can send a digital baseband signal to the digital baseband IC. The S1M8657X01 is a ...
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... S1M8656A BLOCK DIAGRAM CRX_IF1 CRX_IF2 RAGC_CONT FRX_IF1 FRX_IF2 2 OFFSET LPF CONTROL OFFSET 1/2Div. LPF CONTROL OFFSET 90D-PSN LPF CONTROL OFFSET LPF CONTROL 3-line Serial Port Interface RX IF/BBA WITH AGC DIV.N/CHIPx8 ADC SW ADC SW 2 ADC ADC MODE Control TCXO/N CHIPx8 ...
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... RX IF/BBA WITH AGC PIN CONFIGURATION FMCLK FMSTB GND VCC GND VCC RAGC_CONT GND FRX_IF1 FRX_IF2 CRX_IF1 CRX_IF2 S1M8656A S1M8656A 36 TCXO 35 VCC 34 GND 33 N.C 32 SLEEPB/CLK 31 FMB/DATA 30 IDLEB/STB 29 SLOTB 28 I_OFS 27 Q_OFS 26 SEN 25 RXVCO_OUT 3 ...
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... S1M8656A PIN DESCRIPTION Pin No Symbol 1 FMCLK 2 FMSTB 7 RAGC_CONT 9 FRX_IF1 10 FRX_IF2 11 CRX_IF1 12 CRX_IF2 21 RXVCO_T1 22 RXVCO_T2 25 RXVCO_OUT 26 SEN 27 Q_OFS 28 I_OFS 29 SLOTB 30 IDLEB/STB 31 FMB/DATA 4 I/O SEN FM ADC clock input ,received from the modem. Signal frequency is 360kHz; if unconnected, it becomes LOW STROBE input. Signal that controls the FM ADC initialization and A-D conversion start. CLOCK frequency is 40kHz, which is received from the MODEM ...
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... Power source for a logic circuit ,related to the digital input /output, connected to an external digital logic such as the modem. AI Analog circuit ground. Pin-18 is N.C. in the product. DI Digital logic circuit ground. - This pin is used for internal testing only and is not connected to anything. S1M8656A Description 5 ...
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... S1M8656A ABSOLUTE MAXIMUM RATINGS Characteristic Power supply Storage temperature Operating temperature Storage temperature Electrostatic discharge rating RECOMMENDED OPERATING CONDITIONS Characteristic Power supply Ambient operating temperature ELECTRICAL CHARACTERISTICS ELECTRICAL CHARACTERISTICS(V Characteristic Current consumption Current consumption Current consumption Current consumption Current consumption Logic high input ...
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... AGC control voltage is controlled so that ADC output is F/S when the input signal is -80dBm. Test Conditions Symbol Min Typ Max VCSEN -102 - - VCMAX - - -12 GSLOPE GVAR - Fin 250 - - NFmin - 7 - NFmid - 20 - NFmax - 70 - IIP3max - IIP3min - TSpur - - -25 Jspur - - -18.4 S1M8656A Unit dBm dBm dB/V dB Mhz dBm dBm dBc dBc 7 ...
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... S1M8656A AC CHARACTERISTICS (Continued) Characteristic Single-tone Overall gain reduction due to one jammer. jammer desense The in-band signal at -97dBm (control the AGC control voltage to 0.5*F/S)and the jammer signal at 900kHz and -57dBm are simultaneously input. The gain reduces if the input/output range is small in the BBA. ...
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... I/Q gain mismatch Gain mismatch between the I and Q signals between 1kHz to 12kHz. Test Conditions - Symbol Min Typ Max Fin 85.38 150 NFmin - 7 - NFmid - 20 - NFmax - 70 - IIP3max - IIP3min - TSpur - - -42 Jspur - - -18.4 Jdsen - - 1.0 CTCF GOFS 250 Zoff 100 - - ATC9 ATC12 Gmis -1 1 S1M8656A Unit MHz dBm dBm dBc dBc dB dB %FS ...
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... S1M8656A AC CHARACTERISTICS (Continued) Characteristic I/Q Phase Phase mismatch between the I and Q signals mismatch between 1kHz to 12kHz. Gain flatness Amount of gain change along I and Q paths between 1kHz to 615kHz Receive VCO pertormance VCO and buffered VCO external time constant and PLL value output Frequency ...
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... 12pF, FMCLK=360kHz, FMSTB=40kHz. load Figure 2. FM Receive ADC Timing Falling time 90% 10% Valid data Falling time: Rising time: 3 -12ns 3 - 12ns 90% 10% Strobe input valid to clock falling edge: > 50ns Strobe input valid after clock falling edge: > 50ns S1M8656A 11 ...
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... S1M8656A Clock period: 0.6 - 10us Clock duty cycle 65% CLK STB line setup time STB All data transitions happen while CLK=Low DATA Valid data bit (N) TCXO period: 50.8ns TCXO TCXO/N STRONG Rise time: 3 -12ns OUTPUT TCXO/N WEAK OUTPUT 12 Clcok N Clcok N+1 DATA line hold time: ...
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... S1M8656A is a CDMA/AMPS receive-only baseband analog IC, located between the RF mid-frequency processing terminal and baseband processing terminal. The RF analog mid-frequency signal terminal(IF SAW filter output), directly connected to the S1M8656A mid-frequency input pin, converts and processes the baseband signal and sends the corresponding digital signal to the modem IC. Baseband analog processing uses QPSK modulation, LPF, and A-D converter and the modem IC performs digital CDMA/AMPS baseband modulation on the digitalized analog baseband signal it receives ...
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... FM Rx Signal Path S1M8656A FM signal path is the same as that of the CDMA with the exception of a different LPF and A-D converter, which meet the system specification. Basically a FM modulated signal between IF mid-frequency to 15kHz is input so that the baseband LPF, unlike CDMA, has the 12kHz cut-off frequency characteristic. A-D Converter has 8-bit resolution, characteristic of AMPS, and processing speed of approx ...
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... I/F. Various external chip clocks can be used by converting them to inputs. CHIPx8 600kHz 750kHz 1.2MHz 630kHz 900kHz Figure Low-Pass Filter Masks 1 2 TCXO Figure 9. CHIPx8 Clock form +0.5dB -0.5dB -3.0dB -60.0dB 12.2khz 100hz 18khz Frequency 1023 1025 1027 1024 1026 2/ftcxo S1M8656A 60khz 15 ...
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... This pin is used with the SLEEPB function in manual mode and designated the SLEEPB/CLK pin. S1M8656A can be used to power down the TCXO/N block using the SPI bus when the CDMA is asleep (CDMA SLEEP). This mode, installed to minimize the product consumption power, is entered by setting a specific bit (PWRDWN) in the CLK_GEN_MODE register to '1'. The current in the sleep mode reduces from 300uA to 10uA. The SEN(PIN26) pins decide on whether the product will used the SPI bus or parallel control inputs ...
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... Serial Data Transfer format S1M8656A and S1M8657 are all slave devices with the SPI bus. What differentiate them from one another is their different device IDs. Each company has its own characteristic SPI bus configuration , but normally the 3-line bus is most often used and sometimes the 2-line bus such as the IIC bus ...
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... STB becomes high as soon as the clock becomes high and this marks the end of data transmission. Modes of Operation S1M8656A can be controlled by existing parallel control inputs such as BBA 2 the SPI bus. The modes of operation consists of digital state FMB, IDLEB, and SLEEPB modes; Table 2 shows the various modes ...
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... Not applied. 0x06 CLK_GEN_MODE 0x09 Not applied. 0x0A AGC_DCONV 0x0C Not applied. 0x0E Reserved 0x10 Reserved 0x11 W : MODEM is recorded in the S1M8656A register R : When S1M8656A sends data to the modem ADDRESS NAME TYPE 00 RESET 01 SPI_ID Table 3. S1M8656A Control Registers R/W Default vale W - Reset. Reset S1M8656A and all the register values are returned to their default value ...
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... S1M8656A Table 4. Description Of Control Registers(Continued) ADDRESS NAME 04 Block_CTL [4:0] When [2:0] = 001 and RXSLOTB=0, FMSLOT Mode; if RXSLOTB = 1,FM Rx Mode. If [2:0]=000, becomes FMSLOT Mode, regardless of RXSLOTB. Operates in the CDMA Mode, regardless of the RXSLOTB state. 09 CLK_GEN_ MODE [4:0] 20 TYPE BITS [7:5] Reserved. Default = 001 [4] Reserved. Default = 1 [3] Reserved. Default = 1 ...
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... Bit to eliminate the harmonic component that can be caused by RX VCO. [1:0] RVCO. Default = 11. 00: All block Power down, excluding TCXO/N. 01: Mode that forces external VCO in the VCO Tank. 10: Mode that forces external VCO in the VCO Tank. 11: Normal VCO Mode. VCO operating mode defining bit. S1M8656A Description 21 ...
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... S1M8656A CHARACTERISTIC GRAPH -30 -40 -50 -60 -70 -80 -90 -100 -110 -120 10 100 1K Frequency offset(Hz) GRPH 2- 1 S1M8656A VCO Open Loop Phase Noise at GRPH 2-1 S1M8656A01 VCO Open Loop Phase Noise at RXVCO_OUT RXVCO_OUT 18 Rs=3.3K/PDM=3. -105 -100 -95 -90 -85 -80 Input Power(dBm) GRPH 2-3 S1M8656A01 CDMA Noise Figure ...
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... RX IF/BBA WITH AGC CHARACTERISTIC GRAPH (Continued) 0 -20 -40 -60 -80 -100 0.0 0.5 1.0 1.5 Vcntl(V) GRPH 2-5 S1M8656A01 Input Power vs. Vcntl Performance GRPH 2-5 Input Power vs. Vcntl Performance for FM full-scale output. for FM full-scale output. 18 Rs=3.3K/PDM=3. 2.0 2.5 3.0 Rs=3.3K/PDM=3.3V 0 -10 -20 -30 -40 -50 -100 -80 -60 -40 Pin(dBm) GRPH 2-7 S1M8656A01 IIP3 for FM half-scale output GRPH 2-7 S1M8656A IIP3 for FM half-scale output Rs=3 ...
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... VCON 2pF 10nF 2.3nH FM 10nF VIF 1:8 SW_MODE CD 10nF 2pF 2pF 10nF 1:8 24 CDMA_ID CDMA_QD FM_QD FM_ID 10nF S1M8656A 5 6 VCC 10nF 10nF 12 1uF 1nF 47pF RX IF/BBA WITH AGC CHIPX8 E_CHIPX8 SW_CHIP TCXOIN 1nF 36 TCXOIN 35 10nF 34 33 ...
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... RX IF/BBA WITH AGC 48BCC PACKAGE OUTLINE #1 #1 INDEX LASER MARK #13 0.045 + 0.10 0.045 + 0.10 #1 C0.2 0.40 + 0.10 0.50 TYP #37 7.00 + 0.10 #37 TOP VIEW #25 6.15 TYP 0.045 + 0.10 5.0 TYP #13 0.30 + 0.10 BOTTOM VIEW #25 6.15 TYP 0.085 Stan off 0.80 MAX Total height 0.045 + 0.10 UNIT:mm S1M8656A SIDE VIEW + 0.040 25 ...
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... S1M8656A PACKAGE DIMENSION 48LQFP PACKAGE OUTLINE #48 NOTE: Dimensions are in millimeters. 26 9.00 + 0.30 7. 0.10 0.18 - 0.05 0.50 RX IF/BBA WITH AGC 0-8 0.127 0.10 MAX 0.05 MIN (0.75) 1.40 + 0.10 1.60 MAX + 0.010 - 0.005 ...