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| MITSUBISHI DIGITAL ASSP MITSUBISHI DIGITAL ASSP M66260FP M66260FP 8 x 4 CROSSPOINT SWITCH MIXING FUNCTION 8 x 4 CROSSPOINT SWITCH withwith MIXING FUNCTION DESCRIPTION The M66260 is an integrated circuit consisiting of a 8 x 4 cross point switch capable of selecting 32 analog switches with mixing registance respectively by serial control inputs. Using the M66260 with an external standard Op-Amp, 8 analog input signals can be mixed and output to any of 4 outputs freely by serial control inputs. FEATURES * Serial data input type * Switching and mixing function possible with standard OpAmp. * Switch matrix can be extended to 8 x 8 or 8 x 12 by combining 2 or 3 ICs in parallel. * Excellent crosstalk characteristic .......................... -90 dB [f = 3 kHz, VIN = -10dBV] (typ.) APPLICATION Line switching with mixing function of telephone and communication equipments. FUNCTION Serial data input A is the data input of the first step of 32 BIT SHIFT REGISTER and when latch enable input LE is "L", the signal of A shifts shifting registers one by one when shift clock input CKs changes from "L" to "H", in units of 32 bits. PIN CONFIGURATION (TOP VIEW) CKS 1 A 2 DIRECT-CONNECTED RD 3 RESET INPUT X0 4 X2 5 SWITCH INPUT X4 6 X6 7 YOUT0 8 YS0 9 SWITCH OUTPUT YS1 10 YOUT1 11 GND 12 SHIFT DATA INPUT SHIFT CLOCK INPUT 24 23 22 21 20 19 18 17 16 15 14 13 VCC SQ31 SHIFT DATA OUTPUT LE LATCH ENABLE INPUT X1 X3 SWITCH INPUT X5 X7 YOUT3 YS3 SWITCH OUTPUT YS2 YOUT2 VCC Outline 24P2N-B The 32 bits are stored into LATCH CIRCUIT in parallel when latch enable LE changes from "L" to "H". Analog switches come on in a low-impedance state when the output of the corresponding latch circuit is "H". They come off in a high-impedance stage when the output of the corresponding circuit is "L". M66260FP BLOCK DIAGRAM DIRECT RESET INPUT SWITCH INPUTS X4 X3 6 20 LATCH ENABLE INPUT CKS RD LE 1 3 22 SHIFT CLOCK INPUT SHIFT DATA INPUT A 2 X7 18 YOUT0 YS0 YOUT1 YS1 YOUT2 YS2 YOUT3 YS3 8 X6 7 X5 19 X2 5 X1 21 X0 4 7 9 11 6 5 4 3 2 1 0 SWITCH OUTPUTS R QL0 QL1 QL2 QL3 QL4 LE DL0 DL1 DL2 DL3 DL4 CK QS0 QS1 QS2 QS3 QS4 DIN 15 10 14 14 13 12 11 10 9 8 LATCH CIRCUIT (x 32) 32-BIT SHIFT REGISTER Note 1: n QLn 23 15 17 22 21 20 19 18 17 16 QL30 QL31 31 16 13 12 GND VCC 30 29 28 27 26 25 24 DL30 DL31 QS30 QS31 n = 0~31 23 SQ31 SHIFT DATA OUTPUT 24 VCC 1 MITSUBISHI DIGITAL ASSP M66260FP 8 x 4 CROSSPOINT SWITCH with MIXING FUNCTION FUNCTION TABLES (1) 32-bit shift register (Note 2) Operation mode Shift Inputs RD x x A L H CKs LE L L QS0 L H QS1 Q0S0 Q0S0 QS2 Q0S1 Q0S1 Internal outputs QS3 Q0S2 Q0S2 ***** ***** ***** QS29 Q0S28 Q0S28 QS30 Q0S29 Q0S29 QS31 Q0S30 Q0S30 Output SQ31 qs030 qs030 (2) Latch circuit [x 32] (Note 2) Operation mode Reset Shift Inputs RD L H H A x x x CKs x L x LE x H L QL0 L QS0 Q0L0 QL1 L QS1 Q0L1 QL2 L QS2 Q0L2 Internal outputs QL3 L QS3 Q0L3 * * * * * * * * * * * * * * * * * * * * QL29 L QS29 Q0L29 QL30 L QS30 Q0L30 QL31 L QS31 Q0L31 (3) 8 x 4 cross point switch QLn L H Status of switch No. n OFF ON Table 1. Latch Output (QLN) and Corresponding Switch No. n Latch output Switch No. QL0 0 QL1 1 QL2 2 QL3 3 ***** ***** QL29 29 QL30 30 QL31 31 Note 2: : Change from "L" to "H" x : "H" or "L" Q0S : The content of shift register before CKs changed Q0L : The content of latch circuit before LE changed from "H" to "L" OPERATION TIMING CHART RD 32 bits 32 bits CKs 31 30 29 31 30 29 A 1 0 1 0 Set switch No. LE Switch on/off setting Switch on/off setting 2 MITSUBISHI DIGITAL ASSP M66260FP 8 x 4 CROSSPOINT SWITCH with MIXING FUNCTION ABSOLUTE MAXIMUM RATINGS (Ta = -20C to 75C unless otherwise noted) Symbol VCC VI VO Pd Tstg Supply voltage Input voltage Output voltage RD, A, CKs, LE X0 ~ X7 YS0 ~ YS3, YOUT0 ~ YOUT3 Parameter Conditions Rating -0.5 ~ +7.0 -0.5 ~ VCC+0.5 -0.5 ~ VCC+0.5 -0.5 ~ VCC+0.5 500 -65 ~ 150 Unit V V V mW C Power dissipation Storage temperature RECOMMENDED OPERATIONAL CONDITIONS (Ta = -20C to 75C unless otherwise noted) Symbol VCC VI VO Topr Supply voltage Input voltage Output voltage RD, A, CKs, LE X0 ~ X7 YS0 ~ YS3, YOUT0 ~ YOUT3 Parameter Min. 2.8 0 0 0 -20 Limits Typ. Max. 5.5 VCC VCC VCC 75 Unit V V V C Operating temperature ELECTRICAL CHARACTERISTICS (Ta = -20C to 75C, VCC = 2.8V ~ 5.5V and GND = 0V unless otherwise noted) Symbol VIH VIL VOL VOH RI Parameter "H" Input voltage "L" Input voltage "L" output voltage "H" output voltage Input resistance RD, A, CKs, LE SQ31 XnYSm n=0~7 m=0~3 YOUTm Ysm IOL = +100A IOH = -100A VI (Xn) = 0.5 x VCC (For any one of switches) VI (YOUTm) = 0.5 x VCC (For any one of switches) (1 block) Switches off; VI = VIH or VIL (for each of Xn, Ysm and YOUTm) VI = VCC or GND VI = VCC VI = GND f = 1MHz Test conditions Min. 0.8 x VCC Limits Typ. Max. 0.2 x VCC 0.55 VCC - 0.8 15 25 40 Unit V V V V k Rf R IOFF ICC IIH IIL CI Feedback resistance 15 0.9 25 1 40 1.1 1.0 400 +1.0 -1.0 10 k -- A A A A pF Resistance difference (Rf and RI) Off-state leakage current Quiescent supply current "H" input current "L" input current Input capacitance VI = VI (RD, A, CKs, LE) 3 MITSUBISHI DIGITAL ASSP M66260FP 8 x 4 CROSSPOINT SWITCH with MIXING FUNCTION TIMING CONDITIONS (Ta = -20C to 75C, VCC = 2.8V ~ 5.5V and GND = 0V unless otherwise noted) Symbol tC tw (CKs) tw (LE) tw (RD) tsu (A - CKs) th (CKs - A) trec (CKs - LE) Parameter Clock cycle Clock pulse width Latch enable pulse width Reset pulse width A setup time before CKS A hold time after CKS LE recovery time after CKS conditions Limits Min. 1000 400 1000 1000 400 200 1000 Typ. Max. Unit ns ns ns ns ns ns ns (Note 4) SWITCHING CHARACTERISTICS (Ta = -20C to 75C, VCC = 2.8V ~ 5.5V and GND = 0V unless otherwise noted) Symbol tPLH tPHL -- Parameter Output "L-H" propagation time Output "H-L" propagation time Crosstalk freqency CKS-SQ31 conditions CL = 10pF (Note 3) (Note 4) -90 Limits Min. Typ. Max. 600 600 Unit ns ns dB Note 3: VIN = 10dBV, fIN = 3kHz Other inputs: 1k at terminal Standard Op-Amp: M5228P (connected externally) RL = 10k Crosstalk: 20 log 10 VO VI Note 4: TEST CIRCUIT Input VCC PG 50 DUT CL Output (1) Pulse generator (PG) characteristics tr = tf = 6ns (10% ~ 90%) VIN = 0 to VCC (2) CL includes stray wiring capacitance and probe input capacitance. (3) Reference voltage Input voltage: 0.5 x VCC Output voltage: 0.5 x VCC 4 MITSUBISHI DIGITAL ASSP M66260FP 8 x 4 CROSSPOINT SWITCH with MIXING FUNCTION TIMING CHART RD tw(RD) tc tw+(CKs) tw-(CKs) CKs A tsu(A-CKs) th(CKs-A) trec(CKs-LE) LE tw(LE) SQ31 tPLH tPHL 5 MITSUBISHI DIGITAL ASSP M66260FP 8 x 4 CROSSPOINT SWITCH with MIXING FUNCTION APPLICATION EXAMPLE Cordless Telephone with Built-in Answering Machine (One host phone and two cordless extensions) HOST PHONE MICROPHONE INPUT EXTENSION 2 MICROPHONE INPUT EXTENSION 1 MICROPHONE INPUT DOOR PHONE INPUT PLAYBACK INPUT SHIFT DATA INPUT ALARM INPUT LINE INPUT SHIFT CLOCK INPUT LATCH ENABLE INPUT DIRECT RESET INPUT Vref OTHER 18 7 19 6 20 5 21 4 3 22 1 2 LINE OUTPUT + _ 8 R QL0 QL1 QL2 QL3 QL4 LE DL0 DL1 DL2 DL3 DL4 CK QS0 QS1 QS2 QS3 QS4 DIN 7 9 11 6 5 4 3 2 1 0 HOST PHONE SPEAKER OUTPUT + _ 15 10 14 14 13 12 11 10 9 8 Latch circuit (x 32) 32-bit shift register EXTENSION 1 SPEAKER OUTPUT + _ 23 15 17 22 21 20 19 18 17 16 EXTENSION 2 SPEAKER OUTPUT STANDARD Op-Amp + _ QL30 DL30 QL31 DL31 31 16 30 29 28 27 26 12 13 25 24 24 QS30 QS31 M66260FP 23 18 7 19 6 20 5 21 4 3 22 1 2 DOOR PHONE OUTPUT + _ 8 R QL0 QL1 QL2 QL3 QL4 LE DL0 DL1 DL2 DL3 DL4 CK QS0 QS1 QS2 QS3 QS4 DIN 7 9 11 6 5 4 3 2 1 0 RECORDING OUTPUT + _ 15 10 14 14 13 12 11 10 9 8 Latch circuit (x 32) 32-bit shift register OTHER + _ 23 15 17 22 21 20 19 18 17 16 OTHER + _ QL30 DL30 QL31 DL31 31 16 30 29 28 27 26 12 13 25 24 24 QS30 QS31 STANDARD Op-Amp M66260FP 23 6 |
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